Topic 4: India–Pakistan Relations
India's most contested bilateral relationship — born of Partition and defined by Kashmir, four wars, the Indus Waters Treaty (1960), cross-border terrorism and a stop-start dialogue. This file maps the disputes, the treaties (Tashkent–Shimla–Lahore), the Line of Control, and the current-affairs churn — framed for Prelims facts and Mains GS-II analysis.
On this page
- 1.Overview of the Relationship
- 2.Partition Legacy & the Four Wars
- 3.Kashmir Dispute & the LoC
- 4.Indus Waters Treaty 1960
- 5.Cross-Border Terrorism
- 6.Key Agreements & Dialogues
- 7.CBMs & People-to-People
- 8.Trade & Connectivity
- 9.Challenges & Way Forward
- 10.Current Affairs Link
- 11.Prelims PYQs (2013–2026)
- 12.Mains PYQs + Model Answers
- ★15-Minute Revision Box
Conceptual Clarity — How UPSC Frames India–Pakistan
This topic yields both static Prelims facts and analytical Mains questions. Sort your prep into three buckets:
- Static facts — treaty years (IWT 1960, Shimla 1972, Tashkent 1966), river allocation, war years, geography (Siachen, LoC, Sir Creek). Near-guaranteed one-liners.
- Institutional/legal — the Indus Waters Treaty mechanism, World Bank's role, Permanent Indus Commission, Article 370 abrogation (2019).
- Analytical (GS-II) — terrorism as the core obstacle, dialogue frameworks, CBMs, the "uninterrupted dialogue" debate. Needs idea + example + judgement.
Territorial note: the entire erstwhile princely state of Jammu & Kashmir — including Pakistan-occupied Kashmir, Gilgit-Baltistan, Aksai Chin and the Shaksgam Valley — is an integral part of India. The Line of Control is not an international border.
1. Overview of the Relationship
India–Pakistan ties are structured by an enduring rivalry rooted in Partition (1947), territorial disputes and asymmetric threat perceptions. Cooperation windows (trade, sports, pilgrimage) recur but remain hostage to terrorism and Kashmir.
- Core disputes: Kashmir, cross-border terrorism, Sir Creek, Siachen, water (post-2016 IWT tensions).
- Nuclear overhang: both are nuclear-armed since 1998 — conflicts stay "sub-conventional" (proxy, terror) under a nuclear ceiling.
- Pattern: a "stop-go" cycle — a peace initiative (Lahore 1999, Agra 2001) is followed by a shock (Kargil, Parliament attack, Mumbai 2008, Pulwama 2019).
- India's stated position: bilateralism (per Shimla), terrorism and talks cannot go together, PoK is Indian territory.
2. Partition Legacy & the Four Wars
| War / Conflict | Year | Trigger / Outcome |
|---|---|---|
| First Kashmir War | 1947–48 | Tribal invasion; J&K accedes to India (Instrument of Accession, Oct 1947); UN ceasefire line. |
| Second War | 1965 | Operation Gibraltar; ended by Tashkent Declaration 1966 (USSR-mediated). |
| Bangladesh Liberation War | 1971 | India's decisive victory; birth of Bangladesh; ended by Shimla Agreement 1972. |
| Kargil Conflict | 1999 | Pakistani intrusion across the LoC; India recaptured heights (Operation Vijay). |
- Instrument of Accession (Oct 1947): Maharaja Hari Singh acceded J&K to India — the legal basis of India's sovereignty over the state.
- Ceasefire line (1949, Karachi Agreement) → renamed Line of Control under the Shimla Agreement (1972).
- 1971 reshaped South Asia; ~93,000 POWs; strategic ascendancy for India.
3. The Kashmir Dispute & the Line of Control
Kashmir is the central territorial dispute. India holds that the entire former princely state — including areas under Pakistani and Chinese occupation — is Indian territory.
- Line of Control (LoC): the 1972 Shimla line dividing Indian-administered J&K from Pakistan-occupied areas; ~740 km; heavily militarised.
- Siachen Glacier: world's highest militarised zone; India holds the Saltoro Ridge since Operation Meghdoot (1984); LoC undefined beyond point NJ9842.
- Article 370 & 35A abrogated (Aug 2019): J&K reorganised into two UTs — Jammu & Kashmir and Ladakh.
- Sir Creek: disputed 96-km estuary boundary in the Rann of Kutch — affects the maritime EEZ.
4. The Indus Waters Treaty (1960)
Signed in 1960 (Nehru–Ayub Khan), brokered by the World Bank, the IWT is one of the world's most durable water-sharing pacts — surviving three wars.
- Eastern rivers (India): Ravi, Beas, Sutlej — unrestricted use.
- Western rivers (Pakistan): Indus, Jhelum, Chenab — India may use for run-of-river hydropower, navigation & limited storage.
- Dispute resolution: Permanent Indus Commission → Neutral Expert (World Bank) → Court of Arbitration (e.g., Kishenganga, Ratle projects).
- Post-Pahalgam (2025): India placed the treaty "in abeyance" pending an end to cross-border terrorism — a major escalation lever. check for latest update or data
5. Cross-Border Terrorism
- Core obstacle: India holds that state-sponsored terrorism (LeT, JeM) from Pakistani soil is the primary barrier to normalisation.
- Major attacks: 2001 Parliament attack, 2008 Mumbai (26/11), 2016 Uri, 2016 Pathankot, 2019 Pulwama, 2025 Pahalgam.
- India's responses: 2016 "surgical strikes" (post-Uri), 2019 Balakot airstrike (post-Pulwama); diplomatic isolation drives; FATF pressure.
- FATF: Pakistan on the "grey list" (2018–2022) over terror-financing lapses; removed 2022 after action plans.
- Doctrine shift: "new normal" — India signals it will retaliate across the LoC/border to terror provocations.
6. Key Agreements & Dialogue Frameworks
| Agreement | Year | Significance |
|---|---|---|
| Tashkent Declaration | 1966 | Ended 1965 war; USSR (Kosygin) mediated; restore status quo ante. |
| Shimla Agreement | 1972 | Bilateralism; ceasefire line → Line of Control; peaceful settlement. |
| Lahore Declaration | 1999 | Vajpayee bus diplomacy; nuclear-risk-reduction CBMs. |
| Agra Summit | 2001 | Vajpayee–Musharraf; ended without a joint statement. |
7. Confidence-Building Measures & People-to-People
- Military CBMs: DGMO hotline, pre-notification of exercises & missile tests, 2003 LoC ceasefire (reaffirmed Feb 2021).
- Nuclear CBMs: annual exchange of nuclear-installation lists (since 1992, "no-attack" agreement); non-attack on each other's atomic facilities.
- People-to-people: Kartarpur Corridor (2019) — visa-free access to Gurdwara Darbar Sahib; Samjhauta Express & Thar Express (suspended); Munabao–Khokhrapar link.
- Sports & culture: cricket ties intermittent; track-II (Neemrana Dialogue).
8. Trade & Connectivity
- MFN saga: India granted Pakistan MFN status (1996); Pakistan never reciprocated. India withdrew MFN in 2019 (post-Pulwama), raising customs duty to 200%.
- Attari–Wagah: the only functional land-trade & transit point; trade largely suspended since 2019.
- Structural blockers: Pakistan denies India overland transit to Afghanistan/Central Asia; SAARC paralysis; political freeze.
- Potential: studies estimate multi-billion-dollar untapped trade if normalised — energy, textiles, agriculture, cement.
9. Challenges & Way Forward
- State-sponsored terrorism & proxy warfare
- Kashmir & the unresolved LoC
- Pakistan's internal instability & army's veto on India policy
- China–Pakistan axis (CPEC through PoK)
- Zero-tolerance on terror; retaliation as "new normal"
- Keep bilateral channels (Shimla) but condition talks on terror
- Diplomatic isolation + FATF/economic pressure
- Strategic patience; strengthen border management & deterrence
10. Current Affairs & Contemporary Relevance
India–Pakistan is a high-churn topic — verify the latest developments before the exam. Confirm current status of the IWT, ceasefire and dialogue. check for latest update or data
11. Prelims PYQs (2013–2026)
Q: The Kartarpur Corridor, opened in 2019, connects Dera Baba Nanak in India with which shrine in Pakistan?
Ans: (b) — the corridor gives visa-free access to Gurdwara Darbar Sahib at Kartarpur.
Q: Under the Indus Waters Treaty (1960), the waters of which set of rivers are allocated to India for unrestricted use?
Ans: (b) — the three eastern rivers (Ravi, Beas, Sutlej) go to India; the western three to Pakistan.
Q: The 1949 ceasefire line in Jammu & Kashmir was formally renamed the "Line of Control" by which agreement?
Ans: (b) — the Shimla Agreement (1972) converted the ceasefire line into the Line of Control.
Q: The Indus Waters Treaty between India and Pakistan was signed in 1960. Which institution acted as the broker/guarantor?
Ans: (b) — the World Bank brokered and is a signatory to the IWT; disputes may go to a World-Bank-appointed Neutral Expert.
Q: The Tashkent Declaration (1966), which ended the 1965 India–Pakistan war, was mediated by —
Ans: (b) — Soviet PM Alexei Kosygin mediated the Tashkent Declaration at Tashkent (then USSR).
Q: The Siachen Glacier, a key India–Pakistan flashpoint, is located in the —
Ans: (b) — Siachen lies in the Eastern Karakoram; the LoC is undefined beyond NJ9842, causing the dispute.
Q: SAARC, whose paralysis is largely attributed to India–Pakistan tensions, has its secretariat at —
Ans: (b) — SAARC (founded 1985, Dhaka) has its secretariat in Kathmandu, Nepal.
Q: Consider the India–Pakistan conflicts: (1) the 1971 war led to the creation of Bangladesh; (2) the 1999 Kargil conflict was fought across the Line of Control; (3) the 1965 war was ended by the Shimla Agreement. Which statements are correct?
Ans: (a) — statement 3 is false; the 1965 war ended with the Tashkent Declaration (1966), not Shimla.
Likely: IWT 1960 river allocation & World Bank role; IWT "abeyance" 2025; Shimla 1972 & LoC; Tashkent 1966 mediator; Siachen/NJ9842; Kartarpur Corridor; Article 370 abrogation (2019); Sir Creek. check for latest update or data
12. Mains PYQs + Model Answers
Genuine dated UPSC questions on India–Pakistan — spanning GS-II (bilateral relations, IWT) and GS-III (cross-border terrorism, border management & internal security), as the subject genuinely straddles both papers. Each carries a full answer skeleton — Introduction → body → Conclusion.
Q: "The situation today is far different to that prevalent fifty years back when the Indus Water Treaty was signed." Highlight the complexity of the current challenges on both sides of the border in this regard. Do you think that a review of the Treaty is in India's best interests? (2016)
Model Answer
- Introduction: Brokered by the World Bank in 1960, the Indus Waters Treaty (IWT) allotted the three eastern rivers (Ravi, Beas, Sutlej) to India and the three western rivers (Indus, Jhelum, Chenab) to Pakistan with India's limited non-consumptive rights. It survived three wars, but the 2020s context is radically different.
- How the situation has changed:
- Climate stress: Himalayan glacial melt, erratic flows and rising water demand on both sides.
- Terrorism linkage: repeated cross-border attacks (Uri, Pulwama, Pahalgam) fuelling "blood and water cannot flow together"; India placed the Treaty in abeyance (2025).
- Under-utilisation: India has not fully harnessed its western-river entitlements (Kishenganga, Ratle) — contested via arbitration.
- China factor: upstream dam-building on the Brahmaputra sets an unwelcome precedent.
- Case for review — pros: strategic leverage against terror, fuller use of India's rights, storage/hydropower for J&K, climate adaptation.
- Case against abrupt abrogation: legal complexity (no unilateral-exit clause), downstream and reputational costs, China precedent, and lower-riparian norms India itself champions.
- Conclusion: A review is in India's interest — but as optimisation and calibrated leverage (maximising entitlements, renegotiating terms) rather than reckless abrogation, balancing security with India's image as a responsible upper riparian.
Q: Terrorist activities and mutual distrust have clouded India-Pakistan relations. To what extent the use of soft power like sports and cultural exchanges could help generate goodwill between the two countries? Discuss with suitable examples. (2015)
Model Answer
- Introduction: India-Pakistan ties remain hostage to cross-border terrorism and deep mutual distrust. Soft power — cricket, cinema, music and people-to-people ties — is often proposed as a bridge to rebuild goodwill.
- How soft power can help:
- Sports diplomacy: "cricket diplomacy" (2005, 2011 Mohali) created summit openings.
- Cultural exchange: Bollywood, music (Coke Studio), Sufi and shared Punjabi heritage build empathy.
- People-to-people: the Kartarpur Corridor (2019), pilgrim and artist visas humanise the "other".
- Track-II diplomacy and academic/media exchange sustain dialogue when official channels freeze.
- Limits of soft power: gestures collapse after every terror attack (26/11, Pulwama); Pakistan army's veto over India policy; visa curbs and hyper-nationalist media; soft power cannot resolve Kashmir or dismantle terror infrastructure.
- Assessment: soft power is a confidence-building lubricant, not a substitute for hard security; it works only atop a terror-free baseline and political will on both sides.
- Conclusion: Sports and cultural exchanges can generate goodwill and keep communication alive, but durable normalisation requires Pakistan to verifiably end cross-border terrorism — soft power complements, it cannot replace, that precondition.
Q: Border management is a complex task due to difficult terrain and hostile relations with certain countries. Elucidate the challenges and strategies for effective border management. (2016)
Model Answer
- Introduction: India's ~15,000 km land borders — especially with a hostile Pakistan (LoC, IB, Sir Creek) — run through the world's most difficult terrain, making border management central to national security.
- Challenges:
- Terrain: Himalayan heights (Siachen), deserts (Rajasthan), riverine and creek areas (Sir Creek) — hard to guard.
- Hostile activity: cross-border terrorism, infiltration, tunnels, drone-dropped arms/drugs from Pakistan.
- Disputes: un-demarcated stretches (LoC, LAC), enclaves and porous borders.
- Coordination: multiple forces (BSF, Army, ITBP), Centre-state overlaps, tech gaps.
- Strategies for effective management:
- Technology: Comprehensive Integrated Border Management System (CIBMS), smart fencing, sensors, anti-drone systems, satellite surveillance.
- Infrastructure: border roads (BRO), Integrated Check Posts, Vibrant Villages Programme.
- Institutional: single force per border ("one border, one force"), intelligence fusion, Coastal Command post-26/11.
- Diplomacy: boundary settlement, border haats and CBMs where feasible.
- Conclusion: Effective border management blends technology, infrastructure, force coordination and diplomacy — a whole-of-government approach that secures borders against a hostile Pakistan while enabling legitimate trade and local development.
Q: The scourge of terrorism is a grave challenge to national security. What solutions do you suggest to curb this growing menace? What are the major sources of terrorist funding? (2017)
Model Answer
- Introduction: Terrorism — much of it emanating from across the western border (LeT, JeM sponsored from Pakistan) — is the gravest challenge to India's internal security, seen in 26/11, Pulwama and Pahalgam.
- Major sources of terrorist funding:
- State sponsorship: covert funding and safe havens from across the border.
- Fake currency (FICN) pumped through third countries.
- Hawala & money laundering; misuse of charities/NGOs.
- Narco-terrorism (drug trafficking), extortion, and increasingly crypto-currency and dark-web channels.
- Solutions to curb terrorism:
- Choke funding: strengthen FIU/ED, FATF pressure on Pakistan, UAPA, demonetisation of FICN, crypto-tracking.
- Security & intelligence: NIA, NATGRID, MAC intelligence fusion, tech-enabled border management.
- Deterrence: calibrated cross-border responses (surgical strikes 2016, Balakot 2019).
- Soft measures: counter-radicalisation, de-radicalisation, community policing, cutting recruitment.
- Global cooperation: CCIT at the UN, intelligence-sharing, extradition.
- Conclusion: Curbing terrorism needs a multi-pronged strategy — strangling finance, sharpening intelligence, credible deterrence against state sponsors, and countering radicalisation — combining hard security with global diplomatic pressure on Pakistan.
Q: Analyse the multidimensional challenges posed by external state and non-state actors to the internal security of India. Also discuss measures required to be taken to combat these threats. (2020)
Model Answer
- Introduction: India's internal security is challenged by external state actors (notably Pakistan, and China's grey-zone tactics) working through non-state proxies — terror groups, and cyber and information operations.
- Challenges from external state actors:
- Pakistan: cross-border terrorism (LeT, JeM), infiltration, FICN, narco- and drone-based smuggling of arms.
- China: grey-zone pressure on the LAC, cyber intrusions, and support that compounds the two-front threat.
- Challenges from non-state actors:
- Terror modules and sleeper cells; radicalisation via social media.
- Cyber-attacks on critical infrastructure; disinformation and psy-ops.
- Nexus with organised crime, drug and weapon trafficking.
- Measures to combat:
- Security architecture: NIA, NATGRID, MAC, coastal security, integrated border management (CIBMS), anti-drone systems.
- Choke finance: ED/FIU, FATF pressure, crypto-monitoring.
- Cyber: CERT-In, Defence Cyber Agency, critical-infrastructure protection.
- Counter-radicalisation and international intelligence cooperation (CCIT).
- Conclusion: A multidimensional threat demands a whole-of-nation response — hardened borders, financial and cyber defences, credible deterrence against state sponsors like Pakistan, and sustained global pressure — to safeguard India's internal security.
Likely: IWT review/abeyance & water as leverage; terror-response doctrine (surgical strikes/Balakot); CPEC & sovereignty; post-370 J&K & Pakistan's posture; dialogue conditionality. check for latest update or data
15-Minute Revision Box
Must-Remember Facts — India–Pakistan
- Wars: 1947–48, 1965, 1971, Kargil 1999
- LoC = 1949 ceasefire line renamed by Shimla 1972; ~740 km
- Siachen = Eastern Karakoram, beyond NJ9842; Op Meghdoot 1984
- Sir Creek = disputed Rann-of-Kutch estuary
- Tashkent 1966 (USSR-mediated) · Shimla 1972 (bilateralism, LoC)
- Lahore 1999 · Agra Summit 2001 (no joint statement)
- 1960, World-Bank-brokered; Nehru–Ayub
- Eastern (India): Ravi, Beas, Sutlej
- Western (Pakistan): Indus, Jhelum, Chenab
- Permanent Indus Commission; abeyance 2025
- 26/11 (2008), Uri & Pathankot (2016), Pulwama (2019)
- Surgical strikes 2016, Balakot 2019; FATF grey list 2018–22
- Art 370 abrogated Aug 2019; CPEC through PoK opposed