Cauvery dispute: Palaniswami urges CM Vijay to press Sonia, Rahul on Mekedatu dam
Synopsis
Key Takeaways
AIADMK general secretary Edappadi K. Palaniswami on Sunday, 15 November 2026, urged Tamil Nadu Chief Minister Vijay to raise the Cauvery water dispute with Congress leaders Sonia Gandhi and Rahul Gandhi during his scheduled visit to Delhi on Monday. Palaniswami specifically called for their intervention against Karnataka's proposed Mekedatu dam, which he warned would obstruct water flows critical to Tamil Nadu.
Palaniswami's Warning on Mekedatu
In a post on X, Palaniswami strongly condemned Karnataka Chief Minister D.K. Shivakumar's repeated assertions that Karnataka held the right to construct the Mekedatu dam without requiring anyone's permission. Such statements, Palaniswami said, risked creating divisions between the people of Tamil Nadu and Karnataka.
He cited the Supreme Court's observations that interstate rivers were national assets over which no single state could claim exclusive rights. On that basis, he argued, Karnataka could not undertake construction affecting downstream states without their prior consent.
Allegations Against Karnataka's Congress Government
Palaniswami alleged that Karnataka's Congress government had neither respected the Supreme Court verdict on Cauvery water sharing nor complied with the directions governing monthly water releases over the past six months. He also rejected Shivakumar's contention that the Mekedatu dam was necessary to supply Tamil Nadu its court-mandated share, calling the argument flawed.
He claimed that water reaching Tamil Nadu's Mettur reservoir largely comprised surplus flows discharged when Karnataka's own reservoirs were full, along with rainwater from catchment areas beyond those reservoirs — not controlled releases from Karnataka's dams as per the monthly schedule.
What Is at Stake for Tamil Nadu
The Cauvery river sustains agriculture across the fertile delta and supplies drinking water to people across 20 districts, Palaniswami noted. He warned that a dam at Mekedatu could effectively turn the delta districts into a desert and jeopardise drinking water supplies for millions.
He further accused the Vijay government of failing to secure Tamil Nadu's water allocation through adequate legal measures since assuming office, alleging that the shortfall had already affected Kuruvai and Samba cultivation seasons.
AIADMK's Legal Legacy on Cauvery
Palaniswami underscored that successive AIADMK governments had pursued sustained legal battles to safeguard Tamil Nadu's rights over Cauvery water. Those efforts, he said, eventually culminated in the Supreme Court's landmark verdict and the establishment of oversight mechanisms to supervise water sharing and ensure Tamil Nadu's monthly allocation.
The Congress Connection and CM Vijay's Delhi Visit
Palaniswami specifically invoked the Congress party's alliance with the ruling government in Tamil Nadu to press his case. He urged Chief Minister Vijay to leverage that relationship by taking up these concerns directly with Sonia Gandhi, Rahul Gandhi, and the Congress president during the Delhi visit, seeking their intervention to restrain Karnataka's public statements and ensure compliance with Cauvery water release directives.
The water dispute is expected to remain a flashpoint as the next cultivation season approaches and dam construction rhetoric in Karnataka intensifies.