Internal Security is one of the most current-affairs-driven segments of GS Paper 3 — questions track live threats (drones, cyber-attacks, LWE, cross-border terror) and always return to the same institutional anchors (UAPA, NIA, NDMA, security forces). The sharpest way to prepare is to study what UPSC has already asked. This resource gives you a clean, topic-wise bank of Internal Security PYQs from 2013 to 2025, then reads that bank like data: what recurs, what is surging, and what is likely in 2026.

The Data: Which Internal Security Themes Does UPSC Ask Most?

Tagging all GS3 Internal Security questions from 2013–2025 by theme (many span two, so totals overlap) reveals four dominant pillars. Terrorism and cyber security lead, closely followed by LWE/Naxalism and border & maritime security — with cyber/technology the clear breakout trend.

Reading the Trend Lines: A Data Scientist's View

The direction of change is as revealing as the counts. Five signals stand out:

• Terrorism is the section's fingerprint: Its causes, manifestations, funding and counter-measures recur almost every year (2025, 2021, 2017, 2016) — the enduring core.
• Cyber & emerging tech is the breakout trend: From cyber warfare (2013) to data protection (2018), cross-border cyber-attacks (2021) and drones/UAVs (2023) — the fastest-growing demand, tracking the digital threat landscape.
• LWE/Naxalism is declining but persistent: Once a near-annual theme, it is trending down as the ground situation improves — yet the 2025 "eliminate LWE by 2026" question shows it still matters.
• Maritime security is rising: Repeatedly asked (2014, 2022, 2025), reflecting India's growing focus on sea trade, coastal security and the Indo-Pacific.
• The development–security nexus is a favourite lens: LWE, border areas and the North-East are consistently framed as "hearts and minds" / development problems, not just law-and-order ones.

The 2026 Forecast: Probability-Ranked Predictions

Internal Security answers reward a threat + institution + solution structure: define the threat, anchor it in the relevant law/agency (UAPA, NIA, FATF, NCSP), then give a multi-layered strategy with a contemporary example. — Legacy IAS Faculty

Topic-Wise PYQ Bank: GS3 Internal Security (2013–2025)

The complete bank, organised by theme for focused revision and answer practice. Year (and word limit, where specified) are tagged.

1. Terrorism, Radicalisation & Terror Funding

• Terrorism is a global scourge — how has it manifested in India? What counter-measures has the State adopted? (2025, 150w)
• Winning of 'Hearts and Minds' in terrorism-affected areas — discuss the measures adopted as part of conflict resolution in Jammu & Kashmir. (2023)
• Give the major sources of terror funding in India and efforts to curtail them; discuss the aim of the 'No Money for Terror' (NMFT) Conference (New Delhi, Nov 2022). (2023)
• Analyse the complexity and intensity of terrorism, its causes, linkages and nexus; suggest measures to eradicate it. (2021)
• The scourge of terrorism is a grave challenge — what solutions do you suggest? What are the major sources of terrorist funding? (2017)
• The terms 'Hot Pursuit' and 'Surgical Strikes' — discuss the strategic impact of such actions against terrorist attacks. (2016)
• "Terrorism is emerging as a competitive industry over the last few decades." Analyse. (2016)
• Religious indoctrination via digital media has led Indian youth to join ISIS — what is ISIS and how is it dangerous to India's internal security? (2015)
• "India as a multi-religious, multi-ethnic society is not immune to the radicalism seen in her neighbourhood." Discuss, with counter-strategies. (2014)

2. Cyber Security & Emerging Technology

• The use of UAVs (drones) by adversaries to ferry arms/drugs is a serious threat — comment on the measures being taken. (2023)
• What are the different elements of cyber security? Examine the extent to which India has developed a comprehensive National Cyber Security Strategy. (2022)
• Analyse the impact of cross-border cyber-attacks on India's internal security; discuss defensive measures. (2021)
• Discuss different types of cyber crimes and measures required to fight the menace. (2020)
• Data security in the digitized world — strengths and weaknesses of the Justice B.N. Srikrishna Committee Report on personal data protection. (2018)
• Discuss the potential threats of cyber attack and the security framework to prevent it. (2017)
• Advantages and security implications of cloud hosting of servers vs in-house hosting for government business. (2015)
• India needs a "Digital Armed Forces" — critically evaluate the National Cyber Security Policy, 2013 and its implementation challenges. (2015)
• What are social networking sites and what security implications do they present? (2013)
• Cyber warfare — outline the cyber threats India is vulnerable to and the state of its preparedness. (2013)
• Use of internet and social media by non-state actors for subversive activities — how have these been misused; suggest guidelines. (2016)

3. Border & Maritime Security

• Why is maritime security vital to protect India's sea trade? Discuss maritime and coastal security challenges and the way forward. (2025, 250w)
• India has a long, troubled border with China and Pakistan — examine the conflicting issues and security challenges; describe the BADP and Border Infrastructure & Management (BM) Scheme. (2024)
• What are the maritime security challenges in India? Discuss the organisational, technical and procedural initiatives taken. (2022)
• For effective border area management, discuss steps to deny local support to militants and manage favourable perception among locals. (2020)
• Analyze internal security threats and transborder crimes along the Myanmar, Bangladesh and Pakistan borders including the LoC; discuss the role of security forces. (2020)
• Border management is complex due to difficult terrain and hostile relations — elucidate the challenges and strategies. (2016)
• What do you understand by 'airspace'? Discuss the implications of civil aviation laws and the challenges of the space above it. (2014)
• In 2012, the IMO moved the piracy high-risk line from 65°E to 78°E in the Arabian Sea — what impact on India's maritime security? (2014)
• How far are India's internal security challenges linked with border management given the long porous borders with South Asia and Myanmar? (2013)

4. Left-Wing Extremism (Naxalism / LWE)

• The Government stated LWE will be eliminated by 2026 — what is LWE, how are people affected, and what measures have been taken? (2025, 150w)
• Naxalism is a social, economic and developmental issue manifesting as a violent threat — discuss emerging issues and a multi-layered strategy. (2022)
• What are the determinants of left-wing extremism in Eastern India? What strategy should the government, civil administration and forces adopt? (2020)
• LWE is showing a downward trend but still affects many parts — explain the Government's approach to counter it. (2018)
• With Malkangiri and Naxalbari foci, discuss corrective strategies to win LWE-affected citizens back into the mainstream. (2015)
• Article 244 & the Fifth Schedule — analyse the impact of non-implementation on the growth of Left-Wing Extremism. (2013)

5. Organised Crime, Money Laundering & Narco-Terrorism

• Explain how narco-terrorism has emerged as a serious threat; suggest measures to counter it. (2024)
• Discuss the types of organised crime; describe the linkages between terrorists and organised crime at national and transnational levels. (2022)
• How do emerging technologies and globalisation contribute to money laundering? Elaborate national and international measures. (2021)
• India's proximity to major illicit opium-growing states — explain the linkages between drug trafficking, gunrunning, money laundering and human trafficking. (2018)
• Money laundering poses a serious threat to economic sovereignty — its significance for India and steps to control it. (2013)

6. Insurgency, North-East & Public Order

• What are the major challenges to internal security and the peace process in the North-Eastern States? Map the peace accords of the past decade. (2025, 250w)
• The North-Eastern region has long been infested with insurgency — analyze the reasons for the survival of armed insurgency there. (2017)
• Mob violence is emerging as a serious law-and-order problem — analyze the causes and consequences with examples. (2017)
• How does illegal transborder migration threaten India's security? Discuss strategies to curb it and the factors driving it. (2014)

7. Security Forces, Laws, Agencies & External Actors

• What are the internal security challenges being faced by India? Give the role of Central Intelligence and Investigative Agencies. (2023)
• Analyse the multidimensional challenges posed by external state and non-state actors to India's internal security; discuss measures. (2021)
• The banning of 'Jamaat-e-Islami' in J&K focused on Over-Ground Workers (OGWs) — examine their role and measures to neutralise their influence. (2019)
• The government amended the UAPA (1967) and the NIA Act — analyze the changes, and the scope/reasons for opposition by human-rights organisations. (2019)
• Human-rights activists call AFSPA (1958) draconian — what sections are opposed? Critically evaluate with reference to the Apex Court's view. (2015)
• CPEC is a cardinal subset of China's OBOR — describe CPEC and why India has distanced itself. (2018)
• China and Pakistan's economic corridor agreement — what threat does it pose for India's security? Critically examine. (2014)

How to Use These PYQs (Answer-Writing Strategy)

1. Master terrorism & its funding: Keep ready notes on radicalisation, terror financing, FATF, NIA and NMFT — the signature theme.
2. Own the cyber & tech shift: Build material on the National Cyber Security Strategy, drones/UAVs, data protection (DPDP Act) and critical-infrastructure security — the fastest-rising demand.
3. Frame LWE & borders as development issues: Use the "hearts and minds" and SAMADHAN lens, not just force.
4. Structure = threat + institution + solution: Define the threat, cite the law/agency (UAPA, NIA, FATF, NCSP), then give a multi-layered strategy.
5. Feed in current affairs: Every recent security development (drone incursions, cyber-attacks, peace accords, LWE operations) is a potential question.