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TNPSC Group 2 Mains 2023 Question Paper with Answers – GS Paper II

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TNPSC Combined Civil Services Examination – II (Group II & IIA Services) – Main Written Examination: Paper II – General Studies (Descriptive Type) · Notification 03/2022 · Exam date: 25.02.2023 (AN) · 3 Hours · 300 marks

Booklet code G2MGS/23; question-cum-answer booklet of 64 pages; English version final. Part A – Sections I & II: answer any 15 of 18 questions, 50 words each, 6 marks each (15 × 6 = 90). Part B: answer any 10 of 12 questions, 150 words each, 12 marks each (10 × 12 = 120). Part C: answer any 6 of 8 questions, 250 words each, 15 marks each (6 × 15 = 90). Total 38 questions, 300 marks.

⬇ Free PDF – 2023 questions with answer outlines (Tamil + English)

Questions and answer outlines

Q 1 · Part A · 6 marks · 50 words · Unit VI – Geography, Environment, Disaster Management
Write about the impact of Covid 19 in Environment.
சுற்றுச் சூழலில் கோவிட் 19 ஏற்படுத்திய தாக்கம் பற்றி எழுதுக.
Answer outline
  • Intro: the 2020 lockdowns were an unplanned global experiment – human activity paused, nature responded, but new waste problems emerged.
  • Positive (short-term): sharp fall in PM2.5/NO2 in Indian cities (Delhi, Chennai) during lockdown; global energy-related CO2 emissions fell by about 5.8% in 2020 (IEA).
  • Rivers such as the Ganga and Yamuna showed better water quality (CPCB observations) as industrial effluents dropped; less noise; wildlife sightings near cities and beaches.
  • Negative: surge in bio-medical waste – masks, PPE kits, gloves, syringes; rise in single-use plastic through takeaway and e-commerce packaging.
  • Neglect of environmental monitoring and enforcement; emissions rebounded quickly once the economy reopened (the gains were temporary).
  • Conclusion: COVID-19 showed that clean air is achievable – a 'green recovery' must make these gains permanent.

Diagram / table: Two-column table: Positive impacts vs Negative impacts.

Q 2 · Part A · 6 marks · 50 words · Unit VI – Geography, Environment, Disaster Management
Define the following : (a) Endangered (E) (b) Vulnerable (V) (c) Threatened (T)
பின்வருவனவற்றை வரையறுக்கவும் : (அ) அருகிவரும் (அழிந்து வரும்) (ஆ) பாதிக்கப்படக் கூடிய (இ) அச்சுறுத்தலுக்கு உட்பட்ட
Answer outline
  • Intro: these are categories of the IUCN Red List of Threatened Species, which assesses the extinction risk of species in the wild.
  • (a) Endangered (EN): a species facing a very high risk of extinction in the wild – e.g., fewer than 2,500 mature individuals with continuing decline, or a population fall of at least 50% over 10 years/3 generations. Examples: Bengal tiger, Asian elephant, Nilgiri tahr, lion-tailed macaque.
  • (b) Vulnerable (VU): a species facing a high risk of extinction in the wild – e.g., fewer than 10,000 mature individuals with continuing decline, or a population fall of at least 30%. Examples: Indian rhinoceros, gaur, sloth bear, snow leopard.
  • (c) Threatened: not a separate category but an umbrella term covering Critically Endangered (CR), Endangered (EN) and Vulnerable (VU).
  • Order of risk: CR > EN > VU (all 'threatened'); below them come Near Threatened and Least Concern.
  • Conclusion: these categories guide conservation priorities and protection under laws such as the Wild Life (Protection) Act, 1972.

Diagram / table: Ladder diagram of IUCN categories: EX – EW – CR – EN – VU – NT – LC, with a bracket marking CR+EN+VU as 'Threatened'.

Q 3 · Part A · 6 marks · 50 words · Unit VII – Indian Economy (Tamil Nadu)
What are the challenges and bottlenecks faced by Indian electricity sector?
இந்திய மின்சாரத்துறை எதிர்கொள்ளும் சவால்கள் மற்றும் இடையூறுகள் என்ன?
Answer outline
  • Intro: India is the world's third-largest electricity producer, yet reliable, affordable power is still a challenge.
  • Financial stress of DISCOMs: tariffs below cost, delayed subsidy payments, accumulated losses and heavy debt; high AT&C losses (16.4% in 2021-22; about 15–16% in later years).
  • Generation: heavy dependence on coal (about 70% of generation) – coal supply/logistics shortages, pollution; hydro and nuclear lagging.
  • Renewable integration: intermittency of solar/wind, inadequate storage, grid-balancing and transmission (green corridor) gaps; land acquisition delays.
  • Distribution: ageing networks, power theft, poor metering/billing; cross-subsidy burden on industry.
  • Reforms: UDAY (2015), Revamped Distribution Sector Scheme (2021) with smart prepaid meters, Green Energy Corridors; later (2024, after this exam) Tamil Nadu restructured TANGEDCO into separate generation, green-energy and distribution companies.
  • Conclusion: financially healthy DISCOMs + storage-backed renewables are the key to the 500 GW non-fossil capacity goal for 2030.

Diagram / table: Flow chart: Generation → Transmission → Distribution, with one bottleneck written under each stage.

Q 4 · Part A · 6 marks · 50 words · Unit VI – Geography, Environment, Disaster Management
Which are the Coastal regions of India are under threat due to rising in sea level.
இந்தியாவில் எந்தெந்த கடற் பகுதிகள் கடல் மட்ட உயர்வினால் பாதிப்புக்கு உள்ளாகும்.
Answer outline
  • Intro: global warming raises sea level through thermal expansion and melting ice; India's long, densely populated, low-lying coast is highly exposed.
  • West coast: Gujarat (Rann of Kutch, Gulf of Khambhat, Saurashtra coast), Mumbai and the Konkan, Kerala's Kuttanad (farming below sea level) and Kochi backwaters.
  • East coast: Sundarbans and the Hooghly delta (West Bengal) – islands like Ghoramara already lost land; Odisha (Kendrapara – Satabhaya villages relocated); Krishna–Godavari delta (Andhra Pradesh).
  • Tamil Nadu: Chennai and Ennore–Pulicat, Cuddalore, the Cauvery delta (Nagapattinam), Thoothukudi and the Gulf of Mannar islands.
  • Islands: Lakshadweep (low coral atolls) and the Andaman & Nicobar Islands are most vulnerable.
  • Impacts: coastal erosion, salt-water intrusion into aquifers and farmland, storm-surge flooding, loss of mangroves and fishing livelihoods.
  • Conclusion: Integrated Coastal Zone Management, mangrove restoration (e.g., MISHTI) and CRZ enforcement are needed.

Diagram / table: Outline map of India marking the vulnerable stretches (Kutch, Mumbai, Kuttanad, Sundarbans, Kendrapara, K–G delta, Chennai, Nagapattinam, Lakshadweep).

Note on the printed question: English sentence is ungrammatical ('Which are the Coastal regions of India are under threat…') and ends with a full stop instead of a question mark; the Tamil version also ends with a full stop.
Q 5 · Part A · 6 marks · 50 words · Unit IV – Science and Technology in Development
Discuss and write the relative order of acid strength of the following oxyacids in the ascending order : (a) HClO, HClO₂, HClO₃ and HClO₄ (b) HNO₃, HNO₂ and HNO
பின்வரும் ஆக்ஸிஅமிலங்களின் அமில வலிமையின் ஒப்பீட்டு வரிசையை ஏறுவரிசையில் எழுதி, விவாதிக்கவும். (அ) HClO, HClO₂, HClO₃ மற்றும் HClO₄ (ஆ) HNO₃, HNO₂ மற்றும் HNO
Answer outline
  • Intro: for oxyacids of the same element, acid strength increases with the number of oxygen atoms / oxidation state of the central atom.
  • (a) Ascending order: HClO < HClO₂ < HClO₃ < HClO₄ (oxidation state of Cl: +1, +3, +5, +7). HClO₄ (perchloric acid) is one of the strongest acids.
  • (b) Ascending order: HNO < HNO₂ < HNO₃ (oxidation state of N: +1, +3, +5). HNO₃ is a strong acid; HNO₂ is weak; HNO (nitroxyl) is very weak.
  • Reason 1 – inductive effect: more electronegative O atoms pull electron density from the O–H bond, so H⁺ is released more easily.
  • Reason 2 – stability of conjugate base: more O atoms delocalise the negative charge by resonance (ClO₄⁻, NO₃⁻ are highly stabilised), so the acid is stronger.
  • Conclusion: higher oxidation state → more stable anion → stronger acid.

Diagram / table: Table: acid – oxidation state of central atom – number of O atoms – relative strength (with an arrow showing increasing strength).

Note on the printed question: Marks for this question are not printed in the booklet (every other Part A question shows '(6)'); as per the Part A note it carries 6 marks.
Q 6 · Part A · 6 marks · 50 words · Unit III – Social Issues (Tamil Nadu)
List out the role of FAO, WHO and UNICEF towards human welfare.
உணவு மற்றும் வேளாண்மை அமைப்பு, உலக சுகாதார நிறுவனம் மற்றும் ஐக்கிய நாடுகளின் சர்வதேச குழந்தைகள் அவசர நிதி அமைப்புகள் மனித நலத்திற்கு ஆற்றிடும் பங்கினை விவரி.
Answer outline
  • Intro: FAO, WHO and UNICEF are UN bodies that together address hunger, health and child welfare – the core of human welfare.
  • FAO (1945, HQ Rome): fights hunger and malnutrition; improves agricultural productivity, fisheries and forestry; food-security data; World Food Day (16 October); led the International Year of Millets 2023.
  • WHO (7 April 1948, HQ Geneva): sets global health standards; disease surveillance and eradication (smallpox eradicated 1980); polio and TB programmes; guided the COVID-19 response; World Health Day (7 April).
  • UNICEF (1946, HQ New York): child survival, immunisation, nutrition, education, sanitation and child protection; emergency relief; Nobel Peace Prize 1965.
  • In India: FAO – food security and nutrition support; WHO with UNICEF – Pulse Polio campaign (India polio-free, certified 2014), immunisation and maternal health support.
  • Conclusion: together they advance the Sustainable Development Goals on hunger (SDG 2), health (SDG 3) and children.

Diagram / table: Three-column table: FAO / WHO / UNICEF – year, HQ, focus, key achievement.

Q 7 · Part A · 6 marks · 50 words · Unit IV – Science and Technology in Development
Mention the risks associated with Genetic Engineering of microbes to the environment.
மரபு பொறியியலால் மாற்றப்பட்ட நுண்ணுயிர்களால் சுற்றுச்சூழலுக்கு ஏற்படும் ஆபத்துக்களை விளக்குக.
Answer outline
  • Intro: genetically engineered microbes (GEMs) are used for insulin, enzymes, bio-pesticides and bioremediation, but their release into nature carries risks.
  • Horizontal gene transfer: engineered genes (e.g., antibiotic-resistance markers) may pass to wild bacteria, spreading antibiotic resistance.
  • Ecological disruption: GEMs may outcompete native microbes, upset soil nutrient cycles and food webs, and harm non-target organisms.
  • Persistence and spread: once released, microbes multiply and cannot be recalled; unpredictable mutations may arise.
  • Possible pathogenicity or toxin production affecting plants, animals or humans; biosafety/biosecurity misuse.
  • Regulation in India: 'Rules, 1989' under the Environment (Protection) Act, 1986 – GEAC, RCGM and Institutional Biosafety Committees assess risks before release.
  • Conclusion: contained use, risk assessment and the precautionary principle (Cartagena Protocol) must guide GE microbes.

Diagram / table: Small flow chart: GE microbe released → gene transfer / competition / persistence → ecological and health risks.

Q 8 · Part A · 6 marks · 50 words · Unit IV – Science and Technology in Development
Write short notes on the following : (a) Biojet Fuel (3) (b) Electronic Voting Machine (3)
பின்வருவனவற்றை பற்றிய சிறு குறிப்புகள் எழுதுக. (அ) உயிரி-ஜெட் எரிபொருள் (ஆ) மின்னணு வாக்களிக்கும் இயந்திரம்.
Answer outline
  • (a) Biojet fuel: aviation turbine fuel made from biomass – non-edible oils (e.g., jatropha), used cooking oil, agri-residues, municipal waste; a form of Sustainable Aviation Fuel (SAF).
  • It can be blended with conventional ATF and cuts life-cycle CO2 emissions; India's first biojet-fuel flight (SpiceJet, Dehradun–Delhi, 27 August 2018) used fuel developed by CSIR-Indian Institute of Petroleum, Dehradun.
  • Later (2024, after this exam), India set indicative SAF blending targets for international flights (1% by 2027, 2% by 2028) – supports aviation decarbonisation and farmer incomes.
  • (b) EVM: an electronic device for casting and counting votes, made by BEL and ECIL; has a Control Unit and Ballot Unit, works on battery and is standalone (not networked).
  • First used in 1982 in the Paravur (Kerala) by-election; legal backing through Section 61A of the Representation of the People Act, 1951 (inserted 1988); used in all constituencies since the 2004 Lok Sabha election; VVPAT added from 2013 for verification.
  • Benefits: faster and accurate counting, no invalid votes, ends booth-capturing and ballot stuffing, saves paper.

Diagram / table: For (b), a simple block diagram: Ballot Unit → Control Unit, with VVPAT printer in between.

Q 9 · Part A · 6 marks · 50 words · Unit IV – Science and Technology in Development
Write about the role of the following : (3 + 3) (a) Atomic Power Station, Kalpakkam (b) Mission Shakthi.
பின்வருவனவற்றின் பங்கு குறித்து எழுதுக. (அ) கல்பாக்கம் அணுமின் நிலையம் (ஆ) “திட்டம் சக்தி” எனும் மிஷன் சக்தி.
Answer outline
  • (a) Madras Atomic Power Station (MAPS), Kalpakkam (Chengalpattu district): India's first fully indigenous nuclear power station – two 220 MWe Pressurised Heavy Water Reactors (units commissioned 1984 and 1986), run by NPCIL.
  • Kalpakkam is also home to IGCAR (Indira Gandhi Centre for Atomic Research) and the Fast Breeder Test Reactor (1985); BHAVINI's 500 MWe Prototype Fast Breeder Reactor (core loading began in March 2024, after this exam) – key to Stage II of Bhabha's three-stage nuclear programme leading to thorium use.
  • Role: low-carbon base-load power for Tamil Nadu and the southern grid, nuclear desalination experience, and research/skill hub.
  • (b) Mission Shakti (27 March 2019): India's first Anti-Satellite (ASAT) missile test by DRDO – a live satellite (Microsat-R) in low earth orbit (~300 km) was destroyed using a ballistic missile defence interceptor.
  • Role: India became the fourth country (after the USA, Russia and China) with ASAT capability; strengthens space-asset security and deterrence; low altitude chosen so debris would decay quickly.
  • (Note: 'Mission Shakti' is also the name of the Union Women and Child Development Ministry's umbrella scheme for women's safety and empowerment – 'Sambal' and 'Samarthya'; a line on it can be added.)

Diagram / table: For (a), a three-box chart of India's three-stage nuclear programme (PHWR → Fast Breeder → Thorium) marking Kalpakkam's place.

Note on the printed question: 'Mission Shakthi' is not specified further; it most likely refers to the 2019 ASAT test (paired with Kalpakkam), but the name is also used for the women's empowerment scheme. The Tamil version renders it as “திட்டம் சக்தி” எனும் மிஷன் சக்தி.
Q 10 · Part A · 6 marks · 50 words · Unit III – Social Issues (Tamil Nadu)
Why Micro Labs Ltd was in news in 2022?
மைக்ரோ லேப்ஸ் லிமிடெட் 2022-ல் செய்திகளில் ஏன் வந்தது?
Answer outline
  • Intro: Micro Labs Ltd is a Bengaluru-based pharmaceutical company, maker of the paracetamol brand Dolo-650 that became a household name during COVID-19.
  • July 2022: the Income Tax Department searched the company's premises across several states; the CBDT alleged that freebies worth about ₹1,000 crore had been given to doctors to promote its products.
  • August 2022: the Federation of Medical and Sales Representatives Associations of India (FMRAI) raised the issue in the Supreme Court in a PIL seeking a binding code on pharma marketing; the Court called it a 'serious issue'.
  • Issue raised: unethical drug promotion, irrational prescriptions and higher costs to patients; the voluntary Uniform Code for Pharmaceutical Marketing Practices (UCPMP) lacked teeth.
  • Follow-up: demand for a statutory code; the government later notified UCPMP 2024; the Income Tax Act already disallows such freebies as business expenditure.
  • Conclusion: the case highlighted the need for ethical, transparent pharma marketing to protect patients.

Diagram / table: Timeline strip: July 2022 IT searches → August 2022 Supreme Court PIL → 2024 UCPMP.

Q 11 · Part A · 6 marks · 50 words · Unit IV – Science and Technology in Development
What is the aim of Digital Ecosystem for Skilling and Livelihood the DESH – stack e-portal?
தொழில்திறன் மற்றும் வாழ்வாதாரத்திற்கான டிஜிட்டல் சூழல்சார் அமைப்பின் தேஷ் - ஸ்டாக் இ-போர்ட்டல் நோக்கம் என்ன?
Answer outline
  • Intro: DESH-Stack (Digital Ecosystem for Skilling and Livelihood) e-portal was announced in the Union Budget 2022-23.
  • Aim: to empower citizens to skill, reskill and upskill through online training, as part of a 'digital public infrastructure' for skills.
  • Provides API-based trusted skill credentials – digitally verifiable certificates that employers can check instantly.
  • Payment and discovery layers to help youth find relevant jobs, apprenticeships and entrepreneurial opportunities.
  • Meant to integrate existing skill and job portals into one skills ecosystem for students, workers and employers (later launched as the Skill India Digital Hub, September 2023).
  • Conclusion: it aims to make India's demographic dividend job-ready in the digital economy (Skill India Mission).

Diagram / table: Layered stack diagram: Training content → Skill credentials (API) → Discovery of jobs → Payments.

Q 12 · Part A · 6 marks · 50 words · Unit VII – Indian Economy (Tamil Nadu)
Discuss in detail Digital Transformation in Indian Agri sector.
இந்திய விவசாயத் துறையில் மெய்நிகர் மாற்றம் குறித்து விரிவாக விவாதிக்கவும்.
Answer outline
  • Intro: digital agriculture uses data, mobile, satellites, drones and AI to raise farm productivity and incomes.
  • Digital public infrastructure: Digital Agriculture Mission (approved September 2024, after this exam) – AgriStack (farmer ID, digital crop survey, land records), Krishi Decision Support System, soil-profile mapping.
  • Markets and payments: e-NAM (2016) online mandis; PM-KISAN direct benefit transfer; Kisan Credit Card digitisation; PMFBY crop-insurance portal using remote sensing.
  • Precision tools: Soil Health Card, drones (Kisan drones, Namo Drone Didi – 2023), weather/advisory apps, IoT-based irrigation, agri-tech start-ups.
  • Tamil Nadu: Uzhavan app (prices, subsidies, weather), GRAINS farmer database, e-auction in regulated markets.
  • Challenges: digital literacy, connectivity in villages, small and fragmented holdings, data privacy and accuracy of land records.
  • Conclusion: if inclusive, digital transformation can make farming smart, climate-resilient and remunerative.

Diagram / table: Mind-map: Digital Agriculture at centre → AgriStack, e-NAM, PM-KISAN, drones, Uzhavan app.

Note on the printed question: Tamil version uses 'மெய்நிகர் மாற்றம்' (literally 'virtual transformation') for 'Digital Transformation'; as per instructions the English version is final.
Q 13 · Part A · 6 marks · 50 words · Unit III – Social Issues (Tamil Nadu)
Explain the various schemes for Socio Economic Development of SC & ST Community in Tamilnadu.
தமிழ்நாட்டில் ஆதிதிராவிட மற்றும் பழங்குடி சமூகத்தின் சமூக-பொருளாதார வளர்ச்சிக்கான பல்வேறு திட்டங்களை விளக்கவும்.
Answer outline
  • Intro: Tamil Nadu's Adi Dravidar and Tribal Welfare Department implements schemes rooted in the social-justice tradition; reservation – 18% SC and 1% ST (within the 69% protected by the 1994 Act), with 3% internal reservation for Arunthathiyars (2009).
  • Education: pre- and post-matric scholarships, free hostels, Adi Dravidar welfare and Government Tribal Residential (GTR) schools, Eklavya Model Residential Schools, special coaching for competitive exams.
  • Economic: TAHDCO (1974) – loans and subsidies for self-employment, land purchase and skill training; Annal Ambedkar Business Champions Scheme (State Budget 2023-24, after this exam) – capital subsidy for SC/ST entrepreneurs.
  • Habitation: Ayothidasa Pandithar Habitation Development Scheme – basic amenities (roads, drinking water, streetlights) in Adi Dravidar habitations; free house-site pattas and housing.
  • Tribals: forest-rights titles under the Forest Rights Act, 2006, tribal sub-plan, livelihood support for PVTGs (e.g., Todas, Irulars, Kurumbas).
  • Protection: SC/ST (Prevention of Atrocities) Act, 1989 – special courts, relief and rehabilitation.
  • Conclusion: these measures aim at dignity, equal opportunity and economic self-reliance.

Diagram / table: Table: Sector (Education / Economic / Housing / Protection) – Scheme – Benefit.

Q 14 · Part A · 6 marks · 50 words · Unit V – Constitution, Polity and Governance (TN)
List out the important legislative measures initiated so far as well as the institutional structures established to tackle the menace of corruption in India.
ஊழல்களுக்கு எதிராக இந்தியாவில் இதுவரை மேற்கொள்ளப்பட்டுள்ள சட்டப்பூர்வமான நடவடிக்கைகளையும் அவற்றைத் தடுக்கும் விதமாக உருவாக்கப்பட்டுள்ள கண்காணிப்பு மற்றும் விசாரணை அமைப்புகளையும் பட்டியலிடுக.
Answer outline
  • Intro: corruption erodes public trust and development; India has built a layered legal–institutional framework against it.
  • Laws: Prevention of Corruption Act, 1988 (amended 2018 – bribe-giving made an offence, time-bound trial); Benami Transactions (Prohibition) Act, 1988 (amended 2016); Prevention of Money Laundering Act, 2002; RTI Act, 2005.
  • More laws: Lokpal and Lokayuktas Act, 2013; Whistle Blowers Protection Act, 2014; Fugitive Economic Offenders Act, 2018; Tamil Nadu Lokayukta Act, 2018.
  • Institutions: CBI (1963, under the DSPE Act, 1946); Central Vigilance Commission (1964 on Santhanam Committee advice; statutory 2003); Lokpal (functional 2019); Enforcement Directorate; CAG (Art. 148).
  • State level: Lokayuktas; Tamil Nadu's Directorate of Vigilance and Anti-Corruption (DVAC); State Information Commission.
  • Conclusion: strong laws need independent agencies, speedy trials and e-governance to plug leakages.

Diagram / table: Two-column table: Legislative measures | Institutional structures (with years).

Q 15 · Part A · 6 marks · 50 words · Unit V – Constitution, Polity and Governance (TN)
In disaster management the role of cooperative federalism is crucial. How far the principles of cooperative federalism were incorporated in the recent COVID 19 disaster management? Evaluate their outcomes.
பேரிடர் மேலாண்மையில் கூட்டுறவுக் கூட்டாட்சியின் பங்கு இன்றியமையாதது ஆகும். சமீபத்திய கோவிட் 19 பேரிடர் மேலாண்மையின் போது கூட்டுறவுக் கூட்டாட்சியின் கொள்கைகள் எந்தளவிற்கு நடைமுறைப்படுத்தப்பட்டன? அவை ஏற்படுத்திய விளைவுகள் என்ன என்பதைக் குறித்து மதிப்பீடு செய்க.
Answer outline
  • Intro: 'public health' is a State subject while disaster management needs national coordination – COVID-19 tested Centre–State cooperation.
  • Cooperation seen: Disaster Management Act, 2005 invoked nationally for the first time (March 2020) with the Epidemic Diseases Act, 1897; regular PM–CM meetings; States allowed to use SDRF funds for COVID; State borrowing limit raised from 3% to 5% of GSDP for 2020-21.
  • Shared tools: Co-WIN and free vaccination, PM Garib Kalyan Anna Yojana food grains via State PDS, Oxygen and medical supply coordination.
  • Strains: initial lockdown with little State consultation, migrant-worker crisis, GST compensation shortfall, shifting vaccine-procurement policy (reversed in June 2021), oxygen allocation disputes.
  • Outcomes: world's largest vaccination drive, food security for ~80 crore people; but uneven preparedness and trust deficits; States like Tamil Nadu and Kerala innovated (war rooms, community kitchens).
  • Conclusion: COVID showed cooperative federalism worked best when States were partners, not just implementers.

Diagram / table: Balance-sheet table: Cooperation (✓) vs Friction (✗) during COVID-19.

Q 16 · Part A · 6 marks · 50 words · Unit V – Constitution, Polity and Governance (TN)
Explain Civil Services Day.
சிவில் சர்வீஸ் தினத்தை விளக்குக.
Answer outline
  • Intro: Civil Services Day is observed every year on 21 April in India.
  • Origin: on 21 April 1947 Sardar Vallabhbhai Patel addressed the first batch of probationers of the Administrative Services at Metcalfe House, Delhi, calling the civil services the 'steel frame of India'.
  • First observed in 2006; organised by the Department of Administrative Reforms and Public Grievances (DARPG).
  • Prime Minister's Awards for Excellence in Public Administration are presented to districts and organisations for outstanding implementation of priority programmes and innovations.
  • Purpose: civil servants rededicate themselves to the citizens, share best practices and reflect on challenges of governance.
  • Conclusion: it reminds officers of Patel's ideal of a neutral, efficient and committed civil service.

Diagram / table: None needed; a one-line timeline (1947 Patel speech → 2006 first Civil Services Day) is enough.

Q 17 · Part A · 6 marks · 50 words · Unit III – Social Issues (Tamil Nadu)
What are the sociological factors that lead to domestic violence?
குடும்ப வன்முறையின் சமூகவியல் கோட்பாட்டை விளக்குக.
Answer outline
  • Intro: domestic violence is physical, sexual, emotional or economic abuse within the family; NFHS-5 (2019-21) found that 29.3% of ever-married women aged 18–49 had ever faced physical or sexual spousal violence.
  • Patriarchy and gender norms: male dominance, acceptance of 'wife-beating' as normal, control over women's mobility and income (feminist theory).
  • Socialisation and learning: children who witness violence may repeat it (social learning theory); violence seen as a way to resolve conflict.
  • Economic factors: women's financial dependence, unemployment and poverty-related stress; dowry demands.
  • Substance abuse (alcoholism), joint-family pressures, stigma and 'family honour' that discourage reporting; weak support systems.
  • Remedies: Protection of Women from Domestic Violence Act, 2005, Dowry Prohibition Act, 1961, One Stop Centres, helpline 181, women's economic empowerment and gender-sensitive education.
  • Conclusion: domestic violence is a social problem, not a private matter – change in attitudes is as important as law.

Diagram / table: Spider diagram: Domestic violence at centre → patriarchy, learning, economic dependence, alcohol, dowry, stigma.

Note on the printed question: Tamil version asks to 'explain the sociological theory of domestic violence' (சமூகவியல் கோட்பாட்டை), while English asks for 'sociological factors'; English version is final.
Q 18 · Part A · 6 marks · 50 words · Unit IV – Science and Technology in Development
Briefly explain the following basic elements of Networking : (a) Network services (b) Transmission media (c) Protocols.
பின்வரும் வலைப்பின்னலின் அடிப்படைக் கூறுகளை சுருக்கமாக விவரி. (அ) நெட்வொர்க் சேவைகள் (ஆ) பரிமாற்ற ஊடகம் (Transmission media) (இ) நெறிமுறை
Answer outline
  • Intro: a computer network links devices so that they can share data and resources; it rests on services, media and protocols.
  • (a) Network services: the functions a network offers users – file and printer sharing, e-mail, web access, DNS (name resolution), DHCP (automatic IP addressing), directory, remote access and cloud services.
  • (b) Transmission media: the physical path for data. Guided (wired) – twisted-pair cable, coaxial cable, optical fibre (highest bandwidth, uses light). Unguided (wireless) – radio waves (Wi-Fi), microwaves, satellite, infrared.
  • (c) Protocols: agreed rules for communication – defining syntax, semantics and timing; e.g., TCP/IP, HTTP/HTTPS, FTP, SMTP; organised in layers (OSI 7-layer / TCP-IP 4-layer models).
  • Conclusion: services give purpose, media give the path, protocols give the language – all three are needed for any network.

Diagram / table: Tree diagram of transmission media: Guided (twisted pair, coaxial, optical fibre) / Unguided (radio, microwave, infrared).

Q 19 · Part B · 12 marks · 150 words · Unit VI – Geography, Environment, Disaster Management
Write a note on the following : (3 × 4 = 12) (a) Chief Minister’s Breakfast Scheme (b) Green Tamil Nadu Mission (c) The Nilgiri Tahr Project.
கீழ்வருவனவற்றை பற்றி குறிப்பு வரைக : (அ) முதலமைச்சரின் காலை உணவு திட்டம் (ஆ) பசுமை தமிழ்நாடு இயக்கம் (இ) நீலகிரி வரையாடு பாதுகாப்பு திட்டம்.
Answer outline
  • (a) CM's Breakfast Scheme: launched on 15 September 2022 in Madurai (Anna's birth anniversary) – free nutritious breakfast for students of Classes 1–5 in government schools on school days.
  • Later (after this exam) expanded to all government primary schools in August 2023 and to government-aided schools in rural areas in July 2024; aims – reduce classroom hunger and anaemia, improve attendance and learning; builds on TN's noon-meal legacy (Kamarajar 1956, MGR's Nutritious Meal 1982).
  • (b) Green Tamil Nadu Mission: launched in September 2022 to raise the State's forest and tree cover from about 24% to 33% (the national forest-policy goal) through large-scale planting of native species over 10 years.
  • Involves forest department nurseries, farmers (trees outside forests), schools, industries and local bodies; tied to TN's Climate Change Mission and Wetlands Mission – carbon sink, biodiversity, livelihoods.
  • (c) Nilgiri Tahr Project: announced in December 2022 (about ₹25 crore, 2022–2027) to conserve Tamil Nadu's State animal (Nilgiritragus hylocrius; IUCN Endangered; endemic to the Western Ghats).
  • Components: population surveys and radio-collaring, reintroduction into historical habitats, shola-grassland restoration and removal of invasive plants, disease study, awareness; 7 October observed as Nilgiri Tahr Day (birth anniversary of E.R.C. Davidar).
  • Conclusion: together the three show TN's welfare-plus-ecology governance model.

Diagram / table: Three-column table: Scheme – Launch year – Objective – Key feature.

Q 20 · Part B · 12 marks · 150 words · Unit VII – Indian Economy (Tamil Nadu)
Discuss the principles of Budgeting.
வரவு செலவுத் திட்டத்தின் கொள்கைகளை விவாதி.
Answer outline
  • Intro: a budget is the government's annual statement of estimated receipts and expenditure – called the 'Annual Financial Statement' under Article 112 (Union) and Article 202 (States).
  • Annuality: the budget covers one financial year (1 April – 31 March); unspent grants lapse at the year-end ('rule of lapse').
  • Unity and comprehensiveness: all receipts and expenditures in one document (e.g., Railway Budget merged with the General Budget in 2017); gross budgeting – show receipts and expenditure in full, not net.
  • Legislative approval and accountability: no tax without law (Art. 265); no withdrawal from the Consolidated Fund without appropriation (Art. 114); audit by CAG and scrutiny by PAC.
  • Balance and fiscal prudence: avoid persistent deficits; FRBM Act, 2003 and Tamil Nadu Fiscal Responsibility Act, 2003 set deficit targets.
  • Accuracy, publicity and transparency: realistic estimates, published documents, outcome budget (2005), gender budgeting (2005-06), green budgeting.
  • Flexibility and economy: supplementary grants, vote on account, re-appropriation; every rupee spent efficiently (value for money).
  • Conclusion: sound budgeting principles turn public money into public value.

Diagram / table: Wheel diagram with 'Budget' at the hub and spokes: Annuality, Unity, Comprehensiveness, Balance, Approval, Transparency, Accuracy, Flexibility.

Q 21 · Part B · 12 marks · 150 words · Unit VII – Indian Economy (Tamil Nadu)
Explain in detail : (a) Incredible India (b) Pradhan Mantri Ujjwala Yojana (PMUY) (c) India’s Target for $ 5 Trillion Economy.
விரிவாக விளக்குக : (அ) வியத்தகு இந்தியா (ஆ) பிரதான மந்திரி உஜ்வாலா யோஜனா (PMUY) (இ) இந்தியாவின் 5 டிரில்லியன் டாலர் பொருளாதார இலக்கு.
Answer outline
  • (a) Incredible India: international tourism branding campaign of the Union Ministry of Tourism, launched in 2002; showcases heritage, culture, spirituality, wildlife, wellness and cuisine.
  • Allied initiatives – 'Atithi Devo Bhava', Incredible India 2.0 (2017), e-Visa, Swadesh Darshan and PRASHAD schemes, Dekho Apna Desh; boosts foreign exchange, employment and soft power.
  • (b) PMUY: launched on 1 May 2016 at Ballia (Uttar Pradesh) – deposit-free LPG connections to adult women of poor households; the initial 8-crore target was reached in 2019.
  • Ujjwala 2.0 (August 2021) added migrant families with self-declaration; total connections exceed 10 crore (latest); targeted subsidy per cylinder; benefits – clean cooking fuel, reduced indoor air pollution and drudgery for women, women's empowerment.
  • Challenge: low refill rates due to cost – continued subsidy and awareness needed.
  • (c) $5 trillion target: goal announced in 2019 to make India a 5-trillion-dollar economy (originally by 2024-25; now expected later this decade); India's GDP was about $3.4 trillion at the time of the exam (2022-23); latest IMF estimates put it at about $4 trillion in 2025 – among the world's five largest economies.
  • Drivers: infrastructure (PM Gati Shakti, National Infrastructure Pipeline), manufacturing (Make in India, PLI schemes), digital economy, exports, MSMEs, agriculture; constraints – global slowdown, jobs, female labour participation, inequality.
  • Conclusion: tourism, clean energy access and growth goals together reflect inclusive development.

Diagram / table: For (c), a simple bar/step chart of India's GDP milestones ($1 tn → $2 tn → $3 tn → ~$4 tn → $5 tn target).

Q 22 · Part B · 12 marks · 150 words · Unit V – Constitution, Polity and Governance (TN)
Analyse the advantages and disadvantages of State Control over the Hindu temples.
இந்துக் கோவில்களின் மீதான மாநில அரசின் கட்டுப்பாடு சார்ந்த நிறைகள் மற்றும் குறைகளை பகுப்பாய்க.
Answer outline
  • Intro: Article 25(2)(a) allows the State to regulate secular activities connected with religious practice; 'religious endowments and institutions' is Entry 28 of the Concurrent List. In Tamil Nadu temples are administered under the HR&CE Act, 1959 (roots in the Madras Hindu Religious Endowments Act (Act II of 1927) of the Justice Party government).
  • Judicial balance: Shirur Mutt case (1954) – the State may manage secular affairs (property, finance) but not essential religious practices; Article 26 guarantees denominations the right to manage religious affairs.
  • Advantages: checks mismanagement and misappropriation by hereditary trustees; recovery and protection of temple lands; audit and transparency of funds.
  • Advantages: social reform – entry and archaka appointments for persons of all castes trained in Agama (appointments made in 2021), Tamil archanai; restoration of ancient temples, annadhanam, schools, colleges and hospitals run from temple funds.
  • Disadvantages: alleged interference in religious matters and violation of Article 26; questions of secular State managing one religion's institutions only.
  • Disadvantages: bureaucratic delays, diversion of funds for administrative costs, encroachment of lands still unresolved, neglect of heritage structures (the Madras High Court issued detailed directions for temple preservation in 2021).
  • Way forward: accountable boards with devotees, heritage experts and audit; digitisation of land records; clear separation of secular and religious functions.
  • Conclusion: State oversight is justified for reform and accountability, but must respect religious autonomy.

Diagram / table: Two-column table: Advantages | Disadvantages, with constitutional basis (Art. 25, 26, Entry 28 List III) written above it.

Q 23 · Part B · 12 marks · 150 words · Unit V – Constitution, Polity and Governance (TN)
Already there is a District Rural Development Agency that looks after development administration at district level. However, yet another organization called District Development Coordination and Monitoring Committee has been created. Explain the rationale behind it and distinguish the new organisation from the earlier one.
ஏற்கனவே மாவட்ட ஊரக வளர்ச்சி முகமை எனும் அமைப்பு மாவட்ட அளவிலான வளர்ச்சித் திட்டங்களைக் கவனித்து வருகிறது. இருந்தும் மாவட்ட வளர்ச்சி ஒருங்கிணைப்பு மற்றும் கண்காணிப்புக் குழு எனும் புதிய அமைப்பொன்று உருவாக்கப்பட்டிருக்கிறது. இதற்கான காரணங்களை விளக்கி இப்புதிய அமைப்பை முந்தைய அமைப்பிலிருந்து வேறுபடுத்திக் காட்டவும்.
Answer outline
  • Intro: DRDA (set up in 1980 with the IRDP) is the district-level implementing agency for rural development schemes; DISHA (District Development Coordination and Monitoring Committee) was constituted in 2016 by the Union Ministry of Rural Development.
  • Rationale: many Central schemes of different ministries run in silos at the district level; need for convergence, people's-representative oversight and outcome monitoring.
  • DISHA replaced the earlier District Vigilance and Monitoring Committees; it monitors a large number of Central schemes (rural development, health, education, sanitation, housing, etc.) with real-time data dashboards.
  • Composition: chaired by the senior-most Lok Sabha MP of the district; other MPs as co-chairs; MLAs, chairperson of the district panchayat, mayor and representatives as members; District Collector as Member-Secretary; meets once every quarter. State-level DISHA is chaired by the Chief Minister.
  • DRDA: a registered society headed by the Collector / Project Director, staffed by officials; its role is planning, fund flow and implementation of rural development programmes.
  • Distinction: DRDA = executing/implementing body of officials for rural schemes; DISHA = coordinating and monitoring forum led by elected representatives, covering schemes of many ministries, urban and rural.
  • Conclusion: DISHA adds accountability and convergence on top of DRDA's implementation role.

Diagram / table: Comparison table: DRDA vs DISHA – year, nature, head, members, role, scope.

Q 24 · Part B · 12 marks · 150 words · Unit VII – Indian Economy (Tamil Nadu)
Explain how Tamil Nadu bagged National Krishi Karman Award for five times?
தமிழ்நாடு எப்படி ஐந்து முறை தேசிய கிருஷி கர்மன் விருதை வென்றது என்பதை விளக்குங்கள்.
Answer outline
  • Intro: Krishi Karman Awards were instituted by the Union Ministry of Agriculture in 2010-11 to honour States for record production of foodgrains and individual crops.
  • TN's awards: total foodgrain production 2011-12 (101.52 lakh tonnes); pulses 2013-14 (6.14 lakh tonnes); coarse cereals 2014-15 (40.79 lakh tonnes); total foodgrains 2015-16 (113.85 lakh tonnes); and oilseeds 2017-18 (10.38 lakh tonnes) – the fifth award, presented in January 2020.
  • Rice: large-scale adoption of the System of Rice Intensification (SRI), quality seeds and hybrid paddy; TN crossed 100 lakh tonnes of foodgrains in several years (peak about 128 lakh tonnes in 2014-15).
  • Pulses: rice-fallow pulses in the delta, pulses-village concept, area expansion (6.37 lakh ha in 2010-11 to 8.84 lakh ha in 2014-15), seed and input support under NFSM.
  • Coarse cereals and oilseeds: hybrid maize and millets in rain-fed areas; groundnut/gingelly productivity drives; micro-irrigation (drip, sprinkler) and precision farming.
  • Enablers: strong extension through TNAU and Agriculture Department, soil testing, farm mechanisation, Sustainable Sugarcane Initiative, timely credit and procurement.
  • Conclusion: technology + extension + farmer participation made TN a repeat winner despite limited water.

Diagram / table: Table: Year – Category – Production (lakh tonnes) for the Krishi Karman awards.

Q 25 · Part B · 12 marks · 150 words · Unit III – Social Issues (Tamil Nadu)
Examine on Child Welfare activities in India.
இந்தியாவில் உள்ள குழந்தை நலன்புரி நடவடிக்கைகளை ஆய்வு செய்க.
Answer outline
  • Intro: children (0–18) are about 39% of India's population (Census 2011); their welfare is a constitutional duty – Art. 15(3), 21A, 24, 39(e)(f), 45 and 51A(k).
  • Nutrition and health: ICDS/Anganwadi (1975) now Saksham Anganwadi & POSHAN 2.0; PM POSHAN (school meals); Mission Indradhanush immunisation; Janani Suraksha Yojana; Rashtriya Bal Swasthya Karyakram.
  • Education: Right to Education Act, 2009 (free and compulsory education for 6–14 years); Samagra Shiksha; NEP 2020 foundational literacy mission.
  • Protection: Juvenile Justice (Care and Protection of Children) Act, 2015; POCSO Act, 2012; Child Labour (Prohibition and Regulation) Amendment Act, 2016; Prohibition of Child Marriage Act, 2006; Mission Vatsalya (child protection services); CHILDLINE 1098; NCPCR (2007).
  • Girl child: Beti Bachao Beti Padhao (2015), Sukanya Samriddhi Yojana.
  • Tamil Nadu: Cradle Baby Scheme (1992), nutritious noon meal and CM's Breakfast Scheme, Puthumai Penn (2022) and Tamil Pudhalvan (2024, after this exam) for higher education.
  • Gaps: stunting and anaemia (NFHS-5), child labour, trafficking, online abuse, dropouts after COVID; weak implementation.
  • Conclusion: convergence of nutrition, education and protection is needed to secure every child's future.

Diagram / table: Four-box chart: Survival (health/nutrition) – Development (education) – Protection (laws) – Participation, each with 2 schemes.

Q 26 · Part B · 12 marks · 150 words · Unit VII – Indian Economy (Tamil Nadu)
Write a note on Industrial Corridors of Tamil Nadu.
தமிழ்நாட்டின் தொழில்வளச் சாலைகள் குறித்து ஒரு குறிப்பு எழுதுக.
Answer outline
  • Intro: an industrial corridor is a planned belt of industries, logistics and urban infrastructure along a trunk transport route; Tamil Nadu, one of the most industrialised States, has several.
  • Chennai–Bengaluru Industrial Corridor (CBIC): under the National Industrial Corridor Development Programme; Ponneri node in TN; automobile, electronics and engineering clusters; linked to Chennai and Kamarajar (Ennore) ports.
  • Chennai–Kanyakumari Industrial Corridor (CKIC): part of the East Coast Economic Corridor supported by the Asian Development Bank; covers coastal districts down to Thoothukudi and Kanyakumari – roads, ports, power and industrial parks.
  • Tamil Nadu Defence Industrial Corridor (announced 2018): five nodes – Chennai, Hosur, Salem, Coimbatore and Tiruchirappalli; promotes defence and aerospace manufacturing and MSMEs.
  • Other growth belts: Chennai–Sriperumbudur–Oragadam auto/electronics hub, Hosur–Krishnagiri, Coimbatore–Tiruppur textiles, proposed Madurai–Thoothukudi corridor; SIPCOT industrial parks.
  • Benefits: investment, jobs, exports, balanced regional development, reduced logistics cost.
  • Challenges: land acquisition, water availability, environmental impact, need for skilled labour.
  • Conclusion: corridors are central to TN's goal of a 1-trillion-dollar economy.

Diagram / table: Sketch map of Tamil Nadu showing CBIC (Chennai–Ponneri towards Bengaluru), CKIC along the coast, and the five Defence Corridor nodes.

Note on the printed question: Tamil version renders 'Industrial Corridors' as 'தொழில்வளச் சாலைகள்' (the usual term is 'தொழில் வழித்தடங்கள்'); English version is final.
Q 27 · Part B · 12 marks · 150 words · Unit IV – Science and Technology in Development
What are ‘B’ Complex Vitamins? Enumerate the biological functions of these vitamins. Why are B-Complex vitamin essential?
வைட்டமின் ‘B’ கூட்டுத்தொகுதி என்பவை யாவை? அதன் பல்வேறு உயிரியல் பணிகளை விளக்குக. வைட்டமின் ‘B’ கூட்டுத்தொகுதி ஏன் முக்கியத்துவம் வாய்ந்துள்ளது?
Answer outline
  • Intro: B-complex is a group of eight water-soluble vitamins that act mainly as coenzymes in metabolism; except B12 they are not stored much, so they are needed daily.
  • B1 Thiamine – coenzyme (TPP) in carbohydrate metabolism; deficiency: beriberi. B2 Riboflavin – FAD/FMN in energy production; deficiency: cracked lips (angular stomatitis), glossitis.
  • B3 Niacin – NAD/NADP in oxidation-reduction reactions; deficiency: pellagra (dermatitis, diarrhoea, dementia). B5 Pantothenic acid – part of coenzyme A (fat metabolism); deficiency: 'burning feet'.
  • B6 Pyridoxine – PLP in amino-acid metabolism and neurotransmitter synthesis; deficiency: anaemia, convulsions. B7 Biotin – carboxylation reactions; deficiency: dermatitis, hair loss.
  • B9 Folic acid – DNA synthesis and cell division; deficiency: megaloblastic anaemia, neural-tube defects in the foetus. B12 Cobalamin – red blood cells and nerve myelin, needs intrinsic factor for absorption; deficiency: pernicious anaemia, neuropathy (risk in strict vegetarians).
  • Why essential: release energy from food, form blood, maintain nervous system, skin and immunity; vital in pregnancy (folic acid supplementation) and for children.
  • Sources: whole grains, pulses, green leafy vegetables, milk, eggs, meat; India runs IFA supplementation and food fortification.
  • Conclusion: a balanced diet is the best guarantee of adequate B-complex vitamins.

Diagram / table: Table: Vitamin – Chemical name – Coenzyme/Function – Deficiency disease – Source (B1 to B12).

Note on the printed question: Minor grammar slip in English: 'Why are B-Complex vitamin essential?' (should be 'vitamins').
Q 28 · Part B · 12 marks · 150 words · Unit VII – Indian Economy (Tamil Nadu)
“International Year of Millets 2023” – Discuss.
“சர்வதேச சிறுதானியங்கள் வருடம் 2023” – விவாதி.
Answer outline
  • Intro: on India's proposal, the UN General Assembly (March 2021) declared 2023 the International Year of Millets, with FAO as the lead agency.
  • Millets: small-seeded hardy grains – major (sorghum/jowar, pearl millet/bajra, finger millet/ragi) and minor millets (foxtail, little, kodo, barnyard, proso); India notified them as 'nutri-cereals' in 2018 (also the National Year of Millets).
  • Nutrition: rich in fibre, protein, iron, calcium and micronutrients; low glycaemic index – help fight malnutrition, anaemia, diabetes and obesity.
  • Climate and farming: grow on poor soils with little water, short duration, low inputs – ideal for rain-fed and drought-prone areas; low carbon and water footprint.
  • India's initiatives: 'Shree Anna' (Budget 2023-24); Indian Institute of Millets Research, Hyderabad as a Global Centre of Excellence; Global Millets (Shree Anna) Conference (March 2023, after this exam); millets in PDS, ICDS and PM POSHAN; India is the world's largest producer of millets.
  • Tamil Nadu: traditional 'siruthaniyam' culture (ragi, samai, thinai, varagu); Tamil Nadu Millet Mission, millet distribution through PDS in hill and dry districts, millet value-addition units.
  • Challenges: low yields and prices, processing difficulty, shift to rice/wheat after Green Revolution, weak market demand.
  • Conclusion: IYM 2023 aimed to bring 'forgotten grains' back to the plate and the farm – a step towards SDG 2 (Zero Hunger) and climate resilience.

Diagram / table: Table: Millet (Tamil name / English name) – key nutrient – where grown in TN.

Q 29 · Part B · 12 marks · 150 words · Unit IV – Science and Technology in Development
What is graphene and who discovered it? Explain in detail the latest applications of graphene?
கிராஃபீன் என்பது யாது மற்றும் அதனை கண்டுபிடித்தவர் யார்? கிராஃபீனின் தற்போதைய பயன்பாடுகளை விரிவாக விளக்குக.
Answer outline
  • Intro: graphene is a single layer of carbon atoms arranged in a two-dimensional hexagonal (honeycomb) lattice – an allotrope of carbon and the basic unit of graphite.
  • Discovery: isolated in 2004 by Andre Geim and Konstantin Novoselov at the University of Manchester using the 'scotch-tape' (mechanical exfoliation) method; they received the Nobel Prize in Physics, 2010.
  • Properties: one atom thick yet among the strongest materials known (far stronger than steel by weight), excellent conductor of heat and electricity, nearly transparent, flexible and impermeable to gases.
  • Electronics: flexible and transparent touch screens, high-frequency transistors, wearable devices, photodetectors.
  • Energy: electrodes for lithium-ion batteries and supercapacitors (faster charging), solar cells, fuel cells.
  • Environment and health: graphene-oxide membranes for water purification and desalination; biosensors, targeted drug delivery, antibacterial coatings.
  • Materials: lightweight composites for aircraft, cars and sports goods; anti-corrosion paints; heat-spreaders in smartphones; conductive inks.
  • Conclusion: called a 'wonder material', graphene's challenge now is low-cost mass production; India too is investing in graphene research and innovation centres.

Diagram / table: Draw the hexagonal honeycomb lattice of graphene with a side note: 1 atom thick, sp² carbon.

Q 30 · Part B · 12 marks · 150 words · Unit IV – Science and Technology in Development
Identify the relations among the appropriate physical quantities governing the following situations and explain the principle behind them. Where are these situations employed? (a) The flow of water through a cylindrical tube of varying diameter. (b) The flow of current through copper wires of different diameters.
பின்வரும் சூழல்கள் அல்லது அமைவுகளை ஆட்கொள்ளும் உரிய இயற்பியல் அளவீடுகளுக்கான தொடர்புகளைக் கண்டறிந்து அவற்றிற்கு பின்னால் அமைந்துள்ள தத்துவத்தை விளக்குக. இத்தகைய அமைவுகள் எங்கு பயன்பாட்டில் உள்ளன? (அ) மாறிக்கொண்டிருக்கும் விட்டத்தைப் பெற்றுள்ளதொரு உருளை வடிவ குழாய் வழியேயான நீரின் பாய்வு. (ஆ) வேறுபட்ட விட்டங்களைப் பெற்றுள்ள தாமிரக் கம்பிகள் வழியேயான மின்னோட்டப் பாய்வு.
Answer outline
  • (a) Equation of continuity: A₁v₁ = A₂v₂ (for an incompressible fluid, volume flow rate Q = Av is constant) – principle: conservation of mass; where the tube narrows, water flows faster.
  • Bernoulli's principle: P + ½ρv² + ρgh = constant along a streamline – principle: conservation of energy; where speed is higher, pressure is lower.
  • Uses of (a): venturimeter (measuring flow rate), garden-hose nozzle and fire-hose jets, carburettor and sprayers/atomisers, aeroplane wing lift, municipal water-pipe design.
  • (b) For wires in series the same current I flows: I = nAev_d, so drift velocity v_d = I/(nAe) – thinner wire, higher drift velocity and current density J = I/A (conservation of charge).
  • Resistance R = ρL/A – thinner wire has higher resistance; Ohm's law V = IR gives a larger voltage drop, and Joule heating H = I²Rt makes it hotter.
  • Uses of (b): fuse wires (thin, low melting point), heating elements, thick conductors for high-current mains and power transmission, choosing wire gauge in house wiring for safety.
  • Analogy: pipe ↔ wire, water flow ↔ current, pressure difference ↔ potential difference, narrow pipe ↔ high resistance.
  • Conclusion: both cases are governed by conservation laws – of mass/energy for fluids and of charge/energy for current.

Diagram / table: Two labelled sketches: (a) a pipe narrowing from A₁ to A₂ with v₁ < v₂ (venturi); (b) a thick and a thin copper wire in series carrying the same current I.

Q 31 · Part C · 15 marks · 250 words · Unit II – Tamil Society: Culture and Heritage
How Dravidian Languages identity sets apart as distinct languages from other Indian Languages?
திராவிட மொழிகளின் அடையாளம் எவ்வாறு மற்ற இந்திய மொழிகளிலிருந்து வேறுபட்ட மொழிகளாக அமைகிறது?
Answer outline
  • Intro: India has four major language families; the Dravidian family – spoken mainly in South India – is independent of Indo-Aryan (Sanskrit-derived) languages.
  • Scholarly recognition: Francis Whyte Ellis (1816) first showed that Tamil, Telugu, Kannada and Malayalam form a separate family; Robert Caldwell's 'A Comparative Grammar of the Dravidian or South-Indian Family of Languages' (1856) established the Dravidian identity. Spread: four major literary languages (Tamil, Telugu, Kannada, Malayalam) plus Tulu, Kodava, Toda, Gondi, Kui, Kurukh and others; Brahui in Pakistan shows the family's ancient wide spread.
  • Grammar: agglutinative – suffixes are added one after another to a root (e.g., படி-த்த்-ஆன்); verb comes at the end (Subject–Object–Verb); postpositions instead of prepositions.
  • Distinct features: gender based on rationality – உயர்திணை / அஃறிணை (Tolkappiyam); inclusive and exclusive 'we' (நாம் / நாங்கள்); native numerals and basic kinship vocabulary (e.g., terms supporting cross-cousin marriage) unrelated to Sanskrit.
  • Sounds: retroflex consonants and the unique ழ (zh) sound; proto-Dravidian had no aspirated consonants – unlike Sanskrit's voiced/aspirated series.
  • Literature and antiquity: Tamil has an unbroken literary tradition – Tolkappiyam, Sangam literature, Thirukkural; Tamil-Brahmi inscriptions (Keezhadi, Adichanallur findings); Tamil was the first language declared 'classical' (2004).
  • Identity and politics: the Dravidian identity fed the self-respect movement, opposition to Hindi imposition (1937–38, 1965) and the two-language policy of Tamil Nadu. Contact: centuries of interaction led to borrowing both ways (Sanskrit words in Malayalam/Telugu; Dravidian influence on Indo-Aryan), yet core grammar remains distinct.
  • Conclusion: grammar, sounds, vocabulary and a continuous classical tradition give the Dravidian languages a separate identity within India's linguistic unity-in-diversity.

Diagram / table: Language-family tree: Dravidian → South (Tamil, Malayalam, Kannada, Tulu, Toda, Kodava), South-Central (Telugu, Gondi, Kui), Central, North (Kurukh, Malto, Brahui); plus a comparison table Dravidian vs Indo-Aryan features.

Note on the printed question: English sentence is ungrammatical ('How Dravidian Languages identity sets apart as distinct languages…'); meaning is clear.
Q 32 · Part C · 15 marks · 250 words · Unit VI – Geography, Environment, Disaster Management
Analyse the role of India in Global Climate Change.
உலகளாவிய காலநிலை மாற்றத்தில் இந்தியாவின் பங்கை பகுப்பாய்வு செய்க.
Answer outline
  • Intro: India is both highly vulnerable to climate change and an important voice in finding solutions – balancing development with responsibility.
  • As an emitter: third-largest absolute emitter today, but per-capita emissions (about 2 tonnes CO2) are far below the world average, and its share of historical cumulative emissions is small (around 3–4%).
  • As a vulnerable nation: heat waves, erratic monsoon, floods (Chennai 2015), cyclones, glacier melt, sea-level rise, threats to agriculture and health.
  • Negotiator: champion of equity and 'Common But Differentiated Responsibilities and Respective Capabilities' (CBDR-RC) under the UNFCCC; demands climate finance and technology transfer from developed countries.
  • Commitments: updated NDC (2022) – reduce emission intensity of GDP by 45% from 2005 levels by 2030 and 50% of installed power capacity from non-fossil sources by 2030 (latest: 50% reached in mid-2025, five years early); additional carbon sink of 2.5–3 billion tonnes; net zero by 2070 (announced at COP26, Glasgow 'Panchamrit').
  • Global leadership: International Solar Alliance (2015, with France), Coalition for Disaster Resilient Infrastructure (2019), Mission LiFE (Lifestyle for Environment, 2021); later (2023, after this exam) the Global Biofuels Alliance (G20) and the Green Credit Programme. Domestic action: NAPCC and 8 missions, renewable expansion (solar and wind among the world's largest), National Green Hydrogen Mission, E20 ethanol blending, energy efficiency (PAT, UJALA).
  • Constraints: coal dependence for energy security, development needs of the poor, inadequate climate finance, adaptation gaps. Tamil Nadu: leader in wind power, TN Climate Change Mission, Green TN Mission, Wetlands Mission, Coastal restoration.
  • Conclusion: India has moved from a 'victim' to a 'solution provider' – a voice of the Global South that combines climate justice with ambitious action.

Diagram / table: Bar comparison of per-capita CO2 emissions (India vs world average vs USA vs EU) or a table of India's NDC targets (2015 vs 2022).

Q 33 · Part C · 15 marks · 250 words · Unit VI – Geography, Environment, Disaster Management
Write a note on various steps taken by the Government of India to tackle the challenges of climate change.
பருவ நிலை மாற்றத்தினால் ஏற்படும் சவால்களை கையாளுவதற்காக இந்திய அரசினால் மேற்கொள்ளப்பட்டு வரும் திட்டங்கள் குறித்து குறிப்பு வரைக.
Answer outline
  • Intro: India follows a two-track approach – mitigation (cutting emissions) and adaptation (building resilience) – within the Paris Agreement framework.
  • National Action Plan on Climate Change (2008) with 8 missions: Solar, Enhanced Energy Efficiency, Sustainable Habitat, Water, Sustaining the Himalayan Ecosystem, Green India, Sustainable Agriculture, Strategic Knowledge; States prepare State Action Plans (SAPCC).
  • Clean energy: large renewable capacity addition (solar parks, PM-KUSUM, rooftop solar – later PM Surya Ghar, 2024), National Green Hydrogen Mission (2023; 5 million tonnes by 2030), nuclear and hydro expansion.
  • Energy efficiency and transport: Perform, Achieve and Trade (PAT), UJALA LED programme, Energy Conservation Act amendment (2022), FAME/EV incentives, ethanol blending (E20), Bharat Stage VI norms, metro rail. Carbon markets and finance: sovereign green bonds (January 2023); later in 2023 – Carbon Credit Trading Scheme and Green Credit Programme, National Adaptation Fund for Climate Change (2015).
  • Forests and ecosystems: Green India Mission, compensatory afforestation (CAMPA), MISHTI (mangroves) and Amrit Dharohar (wetlands) schemes (announced in Budget 2023-24), Nagar Van Yojana.
  • Adaptation: climate-resilient agriculture (NICRA), PMFBY crop insurance, Jal Jeevan and Jal Shakti Abhiyan – Catch the Rain, early-warning systems by IMD and NDMA, heat action plans, cyclone shelters.
  • International: NDC 2022, Net Zero 2070, Mission LiFE, International Solar Alliance, CDRI. Tamil Nadu: TN Climate Change Mission, Green TN Mission, TN Wetlands Mission, Governing Council on Climate Change.
  • Conclusion: these steps show India's 'development without compromising the planet' path; the key now is finance, technology and local implementation.

Diagram / table: Two-branch chart: Mitigation (energy, efficiency, transport, carbon market, forests) vs Adaptation (agriculture, water, disaster, health), with 2 schemes under each.

Q 34 · Part C · 15 marks · 250 words · Unit V – Constitution, Polity and Governance (TN)
Elaborate the various institutional frameworks erected to address the issues in public life relating to probity and corruption in India.
இந்தியாவில் பொதுவாழ்வில் உள்ள நன்னடத்தை மற்றும் ஊழல் தொடர்பானப் பிரச்சினைகளைக் கண்டறிவதற்காக நிறுவப்பட்டுள்ள அமைப்பு சார்ந்த பல்விதக் கட்டமைப்புகளை விவரிக்கவும்.
Answer outline
  • Intro: probity means integrity, honesty and uprightness in public life; the Second Administrative Reforms Commission's report 'Ethics in Governance' (2007) called for a strong institutional framework.
  • Constitutional bodies: Comptroller and Auditor General (Art. 148) – audits public spending; Election Commission (Art. 324) – model code, candidate affidavits on assets and criminal cases; UPSC/State PSCs – merit-based recruitment; judiciary – PILs and judicial review.
  • Statutory anti-corruption bodies: Lokpal (Lokpal and Lokayuktas Act, 2013; first Lokpal appointed 2019) and State Lokayuktas; Central Vigilance Commission (statutory under the CVC Act, 2003) with Chief Vigilance Officers in departments. Investigating agencies: CBI (DSPE Act, 1946), Enforcement Directorate (PMLA, 2002; FEMA), Serious Fraud Investigation Office, Financial Intelligence Unit, Income Tax investigation wing.
  • Transparency bodies: Central and State Information Commissions under the RTI Act, 2005; social audit (MGNREGA), Citizen's Charters and grievance portals (CPGRAMS).
  • Parliamentary oversight: Public Accounts Committee, Estimates Committee, Committees on Ethics in both Houses; codes of conduct for ministers; conduct rules for civil servants (e.g., All India Services Conduct Rules, 1968).
  • Tamil Nadu: Directorate of Vigilance and Anti-Corruption (DVAC), Tamil Nadu Lokayukta (Act of 2018), Tamil Nadu Information Commission, Vigilance Commission. Technology: e-procurement, DBT, GeM, digital land records reduce discretion and leakages.
  • Gaps: lack of independence and staff, delays in sanction for prosecution, low conviction rates, weak whistle-blower protection, political interference.
  • Conclusion: institutions must be backed by ethical leadership, a value-based civil service and an alert citizenry to ensure probity.

Diagram / table: Layered chart: Constitutional bodies → Statutory bodies → Investigating agencies → Transparency mechanisms → State-level (TN) bodies.

Q 35 · Part C · 15 marks · 250 words · Unit II – Tamil Society: Culture and Heritage
Explain the origin and functions of Central Institute of Classical Tamil.
செம்மொழி தமிழ் மைய நிறுவனத்தின் தோற்றம் மற்றும் செயல்பாடுகளை விளக்கவும்.
Answer outline
  • Intro: the Central Institute of Classical Tamil (CICT), Chennai, is the national institution for research and promotion of Classical Tamil, under the Union Ministry of Education.
  • Background: the demand for classical status – voiced by scholars such as Parithimar Kalaignar (V.G. Suryanarayana Sastri) and by Tamil Nadu – was met when Tamil became the first Indian language declared 'Classical' in October 2004. Origin: in July 2005 the Centre's scheme for Classical Tamil was entrusted to the Central Institute of Indian Languages (CIIL), Mysuru (Centre of Excellence for Classical Tamil); the Union Cabinet approved setting up CICT in Chennai in January 2008 and it began functioning on 30 June 2008 as an autonomous body.
  • Governance: the Chief Minister of Tamil Nadu is the ex-officio Chairperson of its governing board; its own campus at Perumbakkam, Chennai, was inaugurated by the Prime Minister in January 2022.
  • Research focus: 41 ancient Tamil works (from Tolkappiyam and the Sangam anthologies – Ettuthogai and Pathuppattu – to Thirukkural, Silappathikaram, Manimekalai, etc., up to about the 6th century CE) – critical editions, translations into Indian and foreign languages, concordances and digitisation.
  • Awards: Presidential awards for Classical Tamil – Tolkappiyar Award (lifetime achievement), Kural Peedam Award (for Indian and foreign scholars) and Young Scholar Awards; Kalaignar M. Karunanidhi Classical Tamil Award (from his personal endowment; first given to Asko Parpola).
  • Other functions: fellowships and research projects, seminars, workshops and summer schools, publications, an online Classical Tamil library and e-learning; translations of the Thirukkural into many languages; promoting Tamil studies abroad.
  • Significance: preserves Tamil antiquity, links archaeology (Keezhadi) with literature, and projects Tamil as a world heritage language.
  • Challenges: faculty vacancies, autonomy and funding debates. Conclusion: CICT is the institutional face of Tamil's classical status – a bridge between the Sangam past and the digital future.

Diagram / table: Timeline: 2004 classical status → 2005 CIIL Mysuru centre → 2008 CICT Chennai → 2022 Perumbakkam campus; plus a box listing the awards.

Q 36 · Part C · 15 marks · 250 words · Unit III – Social Issues (Tamil Nadu)
Explain the characteristics of third sectors and analyse its role in providing health care services in the country.
மூன்றாவது துறைகளின் பண்புகளை விளக்கி, நாட்டில் சுகாதார சேவைகளை வழங்குவதில் அதன் பங்கை பகுப்பாய்வு செய்யுங்கள்.
Answer outline
  • Intro: the 'third sector' is the space between the State (first sector) and the market (second sector) – NGOs, voluntary organisations, charitable trusts, societies, cooperatives, SHGs and faith-based bodies.
  • Characteristics: non-governmental and self-governing; not-for-profit (surplus reinvested); voluntary participation; value-driven (service, social justice); close to communities and flexible/innovative; registered under the Societies Registration Act, Trusts Acts or Section 8 of the Companies Act; foreign funds regulated by FCRA, 2010 (amended 2020).
  • Role in health – service delivery: hospitals and clinics in underserved areas; e.g., CMC Vellore (1900, Ida Scudder), Cancer Institute, Adyar (1954, initiated by Dr. Muthulakshmi Reddy), Aravind Eye Care System, Madurai (1976) – low-cost, high-volume model; Sankara Nethralaya, Chennai (1978).
  • Community health and outreach: village health workers, mobile clinics, camps; Jamkhed Comprehensive Rural Health Project (Maharashtra) and SEWA models inspired ASHA-type community workers. Partnership with government: Pulse Polio mobilisation, TB and HIV/AIDS targeted interventions with NACO, NHM community action and Rogi Kalyan Samitis, ambulance services under PPP, palliative care.
  • Advocacy and rights: patients' rights, mental health, disability, tobacco control; research and training; disaster and pandemic relief (COVID-19 food, oxygen and vaccination drives).
  • Strengths: trust, reach to the poor and marginalised, innovation, cost-effectiveness. Limitations: dependence on donors, uneven quality and accountability, urban concentration, some misuse of funds, compliance burden after FCRA tightening.
  • Way forward: NITI Aayog's NGO-Darpan portal, outcome-based grants, accreditation, social audit and stronger PPP frameworks.
  • Conclusion: the third sector complements, not replaces, public health – essential for Universal Health Coverage (SDG 3).

Diagram / table: Venn/three-circle diagram: State – Market – Third sector, with health examples in the third-sector circle.

Note on the printed question: Minor grammar slip in English ('third sectors … its role').
Q 37 · Part C · 15 marks · 250 words · Unit VII – Indian Economy (Tamil Nadu)
Describe in details on various industrial problems of India.
இந்தியாவின் பல்வேறு தொழில்துறையில் ஏற்படும் பிரச்சினைகளை விரிவாக விளக்குக.
Answer outline
  • Intro: manufacturing contributes only about 15–17% of India's GDP, well below the 25% goal of the National Manufacturing Policy (2011) – reflecting structural problems.
  • Infrastructure and logistics: power shortages/high industrial tariffs (cross-subsidy), congested ports and roads; logistics cost higher than global benchmarks – addressed by PM Gati Shakti (2021) and the National Logistics Policy (2022).
  • Land and labour: difficult land acquisition; complex labour laws – 29 central laws consolidated into four Labour Codes (passed 2019–20); low skill levels and informal employment. Finance: high cost of capital, credit gaps for MSMEs, bank NPAs and industrial sickness (handled through the Insolvency and Bankruptcy Code, 2016).
  • Technology and productivity: low R&D spending (under 1% of GDP), obsolete machinery, low value addition, dependence on imports of electronics, APIs and capital goods (especially from China).
  • Regulatory and governance: multiple approvals, delays, tax disputes, inverted duty structure; ease-of-doing-business reforms, single-window systems and GST partly address these.
  • Regional imbalance: industry concentrated in a few States (Maharashtra, Gujarat, Tamil Nadu, Karnataka); backward regions lag. Environmental and external issues: pollution and compliance costs, global slowdowns, protectionism, supply-chain shocks (COVID-19), raw-material price volatility.
  • Responses: Make in India (2014), Production-Linked Incentive schemes (2020), Atmanirbhar Bharat, Udyam registration, ECLGS for MSMEs, Startup India, industrial corridors; Tamil Nadu – SIPCOT parks, Guidance Tamil Nadu single window, sector policies (EV, electronics).
  • Conclusion: tackling infrastructure, skills, finance and regulation together can make India a global manufacturing hub.

Diagram / table: Problem–Solution table: Problem (infrastructure, land, labour, finance, technology, regulation) → Government response.

Note on the printed question: Minor grammar slip in English ('Describe in details on …').
Q 38 · Part C · 15 marks · 250 words · Unit IV – Science and Technology in Development
Explain about “Tamil Nadu ICT Policy” (Information Communication Technology).
தமிழ்நாடு ICT கொள்கையை விளக்குக.
Answer outline
  • Intro: Tamil Nadu – among India's leading IT/ITeS and electronics States – frames ICT policies to attract investment, create jobs and deliver e-governance; the Information Communication Technology Policy, 2018 (IT Department) is the key document, following earlier IT policies (1997, 2008).
  • Vision: make Tamil Nadu the number-one State in the ICT sector, within the Vision Tamil Nadu 2023 framework – a dynamic information architecture, a skilled workforce, a knowledge ecosystem linking universities and industry, and an economic regime that rewards innovation and entrepreneurship.
  • Infrastructure: IT parks and SEZs (ELCOT's ELCOSEZs in Tier-II cities – Coimbatore, Madurai, Tiruchirappalli, Tirunelveli, Hosur, Salem), submarine-cable landing stations at Chennai, reliable power, four international airports. Incentives: capital subsidy and extra benefits for units in B and C category districts; stamp-duty reimbursement; FSI relaxation for IT parks; special packages for mega projects based on investment and jobs.
  • Start-ups and MSMEs: lease-rental subsidy, reimbursement of quality-certification and patent-filing costs; support for emerging technologies – AI, IoT, blockchain, data analytics, FinTech, AgriTech, EdTech.
  • Human resources: large engineering talent pool, ICT Academy of Tamil Nadu (ICTACT), Skill Development Mission, 'learn while you work'; women – night-shift facilitation with safety measures, internal complaints committees. Green IT: promotion of green IT parks and awards for green practices.
  • E-governance and connectivity: Tamil Nadu e-Governance Agency (TNeGA), e-Sevai centres, TNSWAN, TANFINET – BharatNet broadband to all 12,525 village panchayats; related policies – Safe & Ethical AI Policy, Blockchain Policy and Cyber Security Policy (2020).
  • Impact: Chennai and Coimbatore as major IT hubs, large IT/ITeS exports and employment, spread to Tier-II towns. Challenges: competition from Bengaluru and Hyderabad, need for AI-era reskilling, data protection and cyber-security.
  • Conclusion: the ICT policy positions Tamil Nadu as a digital-economy leader and supports its 1-trillion-dollar economy goal.

Diagram / table: Pillar diagram: TN ICT Policy roof resting on pillars – Infrastructure, Incentives, Start-ups, Skills, Women, Green IT, E-governance.

Frequently asked questions

Where can I get TNPSC Group 2 Mains previous year question papers with answers?

On this page: the official Group 2 Mains General Studies Paper II questions of 2026, 2025, 2023, 2019 in Tamil and English, each with an answer outline prepared by Shanmugam IAS Academy faculty, plus a free PDF for every year. The official question papers are published by TNPSC on tnpsc.gov.in.

What is the pattern of the TNPSC Group 2 Mains Paper II?

A 3-hour descriptive General Studies paper for 300 marks. In recent papers (2025, 2026): Part A – 9 compulsory questions of 10 marks; Part B – 3 of 5 questions of 10 marks; Part C – 6 sections, 2 of 3 questions in each, 15 marks. Paper I (Tamil Eligibility Test) is a qualifying paper.

How should I use previous year questions for the mains?

Read the questions unit by unit to see what TNPSC asks, write answers within the word limit, then compare with the outline: introduction, the points examiners expect, Tamil Nadu data, a table or flowchart and a one-line conclusion. Our free daily practice gives 3 new questions every day with model answers.

Questions are reproduced from the official TNPSC question papers (tnpsc.gov.in). Answer outlines © Shanmugam IAS Academy, Coimbatore.

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