India-Sri Lanka Maritime Friction: Fishermen Livelihoods and the Katchatheevu Dispute

The conclusion of the 61-day annual fishing ban in Rameswaram has brought the long-standing maritime disputes between India and Sri Lanka back into focus. As hundreds of fishermen returned to the Palk Strait in June 2026, the community renewed its plea for the Union government to secure the release of 25 fishers currently in Sri Lankan custody. This recurring cycle of arrests and boat seizures underscores the complex interplay between traditional livelihood rights and international maritime boundaries.

The crux of the grievance lies in the 1974 and 1976 maritime boundary agreements, through which India ceded the island of Katchatheevu to Sri Lanka. While these agreements were intended to settle boundary disputes, they effectively restricted Indian fishermen from their traditional fishing grounds. The Rameswaram community argues that retrieving Katchatheevu is the only permanent solution to prevent frequent arrests by the Sri Lankan Navy and to ensure the safety of Indian vessels in the narrow Palk Strait.

From a policy perspective, the issue presents a significant challenge to India’s 'Neighborhood First' policy. While New Delhi seeks to maintain strategic ties with Colombo, especially in the face of regional geopolitical competition, the humanitarian and economic concerns of the Tamil Nadu fishing community demand proactive diplomatic intervention. The situation also highlights the need for sustainable fishing practices, as the depletion of resources on the Indian side of the International Maritime Boundary Line (IMBL) often drives fishers to cross into Sri Lankan waters.

For UPSC aspirants, this development is a classic case study of how domestic socio-economic issues can influence foreign policy. It involves understanding the legalities of the United Nations Convention on the Law of the Sea (UNCLOS), the historical context of Indo-Lanka treaties, and the role of sub-national actors in international relations.