A flashpoint in the Palk Strait – Katchatheevu Dispute

GS 2 – INTERNATIONAL RELATION

Background
  • Katchatheevu is a barren, uninhabited island in the Palk Strait, between Tamil Nadu (India) and Sri Lanka.
  • In 1974, India formally recognised Sri Lanka’s sovereignty over the island, thereby giving up its territorial claim.
  • The issue continues to trigger political and diplomatic tensions, particularly in Tamil Nadu.
Historical context
  • The island was strategically important for fishing and access to sea routes.
  • The International Maritime Boundary Line (IMBL) was demarcated in 1974 and 1976, dividing rights over the sea between the two nations.
  • India’s assertion of control over Katchatheevu was given up in exchange for access to Sri Lanka’s maritime resources.
  • Rival claims date back to the 1920s, during British rule.
 Why it remains contentious
  • Fishing rights remain the core issue:
    ➤ Tamil Nadu fishermen rely on rich fishing grounds near the island.
    ➤ Sri Lankan authorities frequently arrest and fine Indian fishermen for crossing into Sri Lankan waters.
  • Environmental concerns:
    ➤ Bottom-trawling by Indian fishermen has damaged marine ecosystems and affected livelihoods.
  • Political sensitivity:
    ➤ Regional parties in Tamil Nadu advocate revisiting the agreement.
    ➤ National parties prioritise diplomatic relations with Sri Lanka.
Key developments
  • Recent visit by Sri Lankan President Anura Kumara Dissanayake to Katchatheevu in 2025 rekindled concerns in India.
  • Tamil Nadu leaders criticised the visit and reiterated demands for protection of fishermen.
  • The Supreme Court of India in the past questioned the constitutional validity of ceding territory without Parliament’s approval.
Perspectives from both sides

Sri Lanka

  • Asserts that Katchatheevu is part of its territory and protects its maritime boundaries.
  • Relies on revenue from fisheries, and opposes Indian fishing incursions.

India (especially Tamil Nadu)

  • Local fishermen lose livelihoods due to arrests and seizures.
  • Political parties demand a renegotiation or revival of fishing rights.
Key stakeholders
  • Fishermen from Tamil Nadu: Their livelihood is severely impacted by arrests and restrictions.
  • State governments (Tamil Nadu, Sri Lanka’s Northern Province): Seek resolution through dialogue.
  • Central governments of India and Sri Lanka: Balance diplomacy, security, and economic interests.
  • Supreme Court of India: Involved in examining constitutional aspects of treaties.
Challenges
  • Complex international law and boundary disputes.
  • Environmental degradation due to unregulated fishing practices.
  • Political pressures at state and national levels.
  • Balancing strategic interests with humanitarian concerns.
Way forward
  • Promote cooperative maritime management.
  • Implement joint fishing agreements with sustainable practices.
  • Strengthen regional dialogue mechanisms.
  • Explore alternative livelihood programs for affected communities.
  • Ensure constitutional adherence in international agreements.
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