Tamil Nadu: CM Vijay seeks Centre’s intervention on Mekedatu dam, avoids confrontation with Congress ally in Karnataka

Tamil Nadu's political scene is buzzing after Chief Minister Joseph Vijay spearheaded a unanimous resolution in the State Assembly against Karnataka proposed Mekedatu dam project on the Cauvery River. The move, adopted on June 19, 2026, urges the Union government to deny any technical or environmental clearances and calls for a new tribunal under the Inter-State River Water Disputes Act, 1956, to resolve the long-standing water dispute. This action puts CM Vijay, whose TVK party is allied with Congress in Tamil Nadu, in a delicate position as Karnataka government is also led by Congress. The resolution forcefully argues that the Mekedatu project, planned at an estimated cost of Rs 9,000 crore, violates existing legal and judicial directives governing Cauvery water sharing. Both the Cauvery Water Disputes Tribunal and the Supreme Court have previously designated the Cauvery basin as 'deficit,' meaning all available water is already apportioned, and no new projects can proceed without the consent of all basin states. Karnataka, however, maintains that the project is a balancing reservoir intended for Bengaluru's drinking water needs and hydroelectric power generation, utilizing only its allocated share of water. With Tamil Nadu's Chief Minister Joseph Vijay having accepted an amendment proposed by Leader of the Opposition Udhayanidhi Stalin to seek a new tribunal, the ball is now firmly in the Union government court. Karnataka Water Resources Minister Ramalinga Reddy has expressed readiness for dialogue, while simultaneously defending the project as crucial for Bengaluru's water security. This escalating inter-state conflict, marked by political maneuvering and legal precedents, will continue to test the federal spirit and demand a swift, authoritative intervention from the Centre to avoid further exacerbating regional tensions.