India-Sri Lanka Relations

Internal Security
Constitution VerifiedUPSC Verified
Version 1Updated 5 Mar 2026

Article 253 of the Indian Constitution empowers Parliament to make laws for implementing international treaties and agreements. The Indo-Sri Lanka Accord of 1987, signed under Article 253, established the framework for India's intervention in Sri Lanka's ethnic conflict. The Accord states: 'The Government of India will take all necessary steps to ensure that Indian territory is not used for activi…

Quick Summary

India-Sri Lanka relations represent a complex bilateral relationship shaped by geographical proximity, historical ties, and contemporary challenges. Located just 30 kilometers from India across the Palk Strait, Sri Lanka is strategically vital for India's maritime security and regional influence.

The relationship encompasses deep cultural connections through Buddhism and Tamil heritage, significant economic interdependence with India as Sri Lanka's largest trading partner, and persistent political challenges arising from ethnic conflicts and great power competition.

The Tamil question remains the most sensitive issue, stemming from Sri Lanka's ethnic conflict between Sinhalese majority and Tamil minority, which led to India's military intervention through the IPKF (1987-1990).

This intervention, mandated by the Indo-Sri Lanka Accord of 1987, ultimately failed and fundamentally altered India's approach to the ethnic conflict. Economic relations have strengthened through the Free Trade Agreement (2000) and proposed CEPA, with bilateral trade reaching $4.

5 billion. However, China's growing influence through BRI projects like Hambantota Port and Colombo Port City has introduced new geopolitical complexities. Recent developments include India's substantial assistance during Sri Lanka's 2022 economic crisis, demonstrating neighborhood first policy in action.

Persistent challenges include fishermen disputes in Palk Bay, Tamil refugee issues, and balancing India's regional leadership aspirations with Sri Lanka's sovereignty concerns. The relationship's future depends on resolving Tamil political aspirations, managing Chinese influence, deepening economic integration, and addressing traditional bilateral irritants through innovative diplomatic solutions.

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  • Indo-Sri Lanka Accord: July 29, 1987 (Rajiv Gandhi-J.R. Jayewardene)
  • IPKF deployment: 1987-1990 (failed intervention)
  • 13th Amendment: Provincial Councils system
  • Civil war end: May 2009 (LTTE defeated)
  • ISFTA: 2000 (first Indian bilateral FTA)
  • CEPA: 2017 (signed but not ratified)
  • Hambantota Port: 99-year lease to China (2017)
  • Economic crisis assistance: $4 billion (2022)
  • Distance: 30 km across Palk Strait
  • Main disputes: Tamil issue, fishermen arrests, China factor

Vyyuha Quick Recall - 'TAMIL CRISIS': T-Tamil question (13th Amendment), A-Accord 1987 (July 29), M-Military intervention (IPKF 1987-90), I-Indian Ocean strategy, L-Lanka's sovereignty concerns, C-China factor (Hambantota), R-Relations normalized post-2009, I-Investment and trade (ISFTA/CEPA), S-Support during 2022 crisis ($4 billion). Remember '30-87-90-09' for key years: 30km distance, 1987 Accord, 1990 IPKF withdrawal, 2009 civil war end.

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