Study Materials (PDF)

U20 · Internal Security – UPSC Civil Services (Prelims & Mains)
18 chapters · 367 MCQs incl. UPSC Prelims PYQs with a reason for every option · 90 Mains questions + Mains PYQs · maps, tables, revision cards
- Internal Security for the UPSC Civil Services Examination (Prelims and Mains, Mains GS Paper III · Prelims GS Paper I). Extremism, Terrorism, External Actors, Organised Crime, Money Laundering, Cyber Security, Border Management and the Security Forces. Every chapter quotes the official UPSC syllabus lines it covers and gives an Exam Radar, a mind map, clear notes with maps, diagrams and quick-revision tables, UPSC Prelims previous-year questions placed with their topic, original MCQs with a reason for every option, UPSC Mains previous-year questions (2013–2025), Mains practice questions with model-answer outlines and a 60-Second Revision Card. Two-stage expert review of every fact and answer key. Instant download after payment; licensed PDF with your name.
- Chapters:
- 1. Internal Security – Concepts, Threats and India's Security Architecture
- 2. Development and the Spread of Extremism
- 3. Left Wing Extremism
- 4. Insurgency in the North-East
- 5. Jammu and Kashmir – Militancy and Security
- 6. Radicalisation, Communal Violence and Internal Security
- 7. Terrorism and Counter-terrorism
- 8. External State and Non-state Actors
- 9. Organised Crime and Its Links with Terrorism
- 10. Money Laundering and Its Prevention
- 11. Communication Networks, Media and Social Media
- 12. Basics of Cyber Security
- 13. India's Cyber Security Framework
- 14. Border Management – Land Borders
- 15. Coastal and Maritime Security
- 16. The Armed Forces and Defence Reforms
- 17. Central Armed Police Forces, Intelligence and Investigation Agencies
- 18. Police and Police Reforms
📖 Look Inside · உள்ளே பாருங்கள் (23 pages) Free sample PDF · இலவச மாதிரி
🔒 Secure payment by Razorpay – UPI, GPay, PhonePe, cards & net banking. The download link appears immediately after payment. Please keep your Payment ID.
📄 Each PDF is licensed to the buyer – your name (in English), part of your mobile number and order number are printed on every page. Please do not share it.
By paying you agree to our Terms and Refund policy.
📝 Free practice quizzes from this book (answer + one-line explanation)
- UPSC Internal Security – Chapter 1: Internal Security – Concepts, Threats and India's Security Architecture (20 MCQs)
- UPSC Internal Security – Chapter 2: Development and the Spread of Extremism (20 MCQs)
- UPSC Internal Security – Chapter 3: Left Wing Extremism (20 MCQs)
- UPSC Internal Security – Chapter 4: Insurgency in the North-East (20 MCQs)
- UPSC Internal Security – Chapter 5: Jammu and Kashmir – Militancy and Security (21 MCQs)
- UPSC Internal Security – Chapter 6: Radicalisation, Communal Violence and Internal Security (20 MCQs)
- UPSC Internal Security – Chapter 7: Terrorism and Counter-terrorism (20 MCQs)
- UPSC Internal Security – Chapter 8: External State and Non-state Actors (20 MCQs)
- UPSC Internal Security – Chapter 9: Organised Crime and Its Links with Terrorism (20 MCQs)
- UPSC Internal Security – Chapter 10: Money Laundering and Its Prevention (21 MCQs)
📰 Current affairs on this subject
- Agnipath: Cabinet approves an extra two-year term for the 75% of Agniveers not retained
- Air Force Station Avadi honoured with the Tamil Nadu Governor's Unit Citation
- Fifth and final S-400 'Sudarshan Chakra' air-defence squadron from Russia – arrival now expected in early 2027
- India–US tri-service HADR exercise 'Tiger Triumph 2026' (5th edition) opens at Visakhapatnam
- For the first time in 47 years, CRPF completes 12 straight months without an operational fatality – PM hails 'a ZERO that speaks volumes'
← All books & study materials · Already paid? Get my purchase
📖 Look Inside உள்ளே பாருங்கள் · 23 sample pages























Like what you see? The full book is only ₹249 · Buy now · இப்போதே வாங்கு
🎁 Free sample PDF இலவச மாதிரி
Download selected pages of this book as a PDF and read them at leisure on your phone. Buy the book if you like it.
இந்த நூலின் மாதிரிப் பக்கங்களை இலவசமாகப் பதிவிறக்கிப் படித்துப் பாருங்கள்.
Frequently asked questions அடிக்கடி கேட்கப்படும் கேள்விகள்
How do I get the PDF after payment? · PDF எப்படிக் கிடைக்கும்?
As soon as the payment is complete, a "Download PDF" button appears on the screen. Tap it and the book downloads at once. You can download again from the same link up to 10 times.
Can I read it on my phone? · கைபேசியில் படிக்கலாமா?
Yes. It opens on any phone, computer or tablet. You may also print it for your own study.
What if I lose the download link? · இணைப்பை இழந்தால்?
Open Get my purchase and enter your mobile number and Payment ID, or WhatsApp 99941 46662.
Can I get a refund? · பணம் திரும்பக் கிடைக்குமா?
As this is an e-book, payments are not refunded after download. If money was debited but you did not get the book, the full amount is refunded. Refund policy
Why is my name printed in the PDF? · PDF-இல் என் பெயர் ஏன்?
Each copy is licensed only to its buyer, so your name (in English), part of your mobile number and the order number are printed on the pages. Please do not share it.

