Tamil Nadu Chief Minister C. Joseph Vijay wrote to Prime Minister Narendra Modi on Tuesday urging the federal government to block the Mekedatu dam project [1].
The request marks a critical escalation in the long-standing Cauvery water dispute between Tamil Nadu and Karnataka. Because the proposed reservoir would control the flow of the Cauvery River, Tamil Nadu argues the project could jeopardize its legal water entitlements, and agricultural stability [3, 5].
The project is proposed for the Mekedatu site near Kanakapura in the Ramanagara district of Karnataka [1, 2]. The site is located close to the Tamil Nadu border, making it a strategic point for water regulation [1].
Vijay said in his letter that the construction of the reservoir violates a Supreme Court order and the award of the Cauvery Water Disputes Tribunal [3, 4]. He urged the Prime Minister to reject the project to ensure that the legal frameworks governing water sharing are upheld [3].
The project has been pushed forward by the Congress-led Karnataka government [2]. Karnataka Deputy Chief Minister DK Shivakumar, a member of the Congress party, previously announced the revised project report as the state seeks to secure more water for its own needs [1].
Tamil Nadu maintains that any unilateral construction at Mekedatu would disrupt the balance of water distribution agreed upon by the tribunal [5]. The state is now relying on the Prime Minister's intervention to prevent the project from proceeding in defiance of judicial mandates [4].
“Tamil Nadu argues the project could jeopardize its legal water entitlements and agricultural stability.”
The dispute over the Mekedatu dam reflects the intense competition for water resources between two major agricultural states. By invoking the Supreme Court and the Cauvery Water Disputes Tribunal, Tamil Nadu is attempting to frame the issue as a matter of legal compliance rather than a political disagreement, placing the burden of enforcement on the central government.




