The Tamil Nadu Legislative Assembly unanimously passed a resolution opposing the construction of the Mekedatu dam on the Cauvery River [1].
The resolution signals a deepening of the long-standing water dispute between Tamil Nadu and Karnataka. Because the dam would be located upstream, the project threatens the water security of millions of farmers in the downstream delta region.
Chief Minister C. Vijay said the Union government should deny all clearances for the project [1]. The proposed dam is located near Kanakapura in the Ramanagara district, which has been recently renamed the Bengaluru South district [2].
Tamil Nadu officials said the project would disrupt the natural flow of the Cauvery River [1]. This disruption could jeopardize agricultural livelihoods and water rights in the delta region, where the river is essential for irrigation [1], [3].
In a letter addressed to Prime Minister Modi, Chief Minister Vijay outlined the state's opposition to the construction [4]. The move comes as both states continue to clash over the sharing of the river's resources, a conflict that has persisted for decades.
The assembly's unanimous vote reflects a unified political front within the state to protect its water interests. The state government maintains that any one-sided attempt to build the reservoir would violate existing agreements, and harm the ecology of the river basin [1], [3].
“The Tamil Nadu Assembly unanimously passed a resolution opposing the construction of the Mekedatu dam.”
The resolution elevates a technical infrastructure project into a high-stakes political confrontation. By seeking a direct intervention from the Union government, Tamil Nadu is attempting to block the project before it reaches the construction phase, leveraging the legal and political complexities of inter-state river water sharing in India.



