The Tamil Nadu Legislative Assembly passed a unanimous, cross-party resolution on June 19, 2026, condemning Karnataka’s proposed Mekedatu Balancing Reservoir-cum-Drinking Water Project on the Cauvery River. CM C. Joseph Vijay personally moved the resolution, which received support from across the political spectrum — including Congress, DMK, CPI, CPM, MDMK, and PMK — a rare show of unity on a Centre-state water dispute.
- Mekedatu violates the 2007 Cauvery Water Disputes Tribunal award and the 2018 Supreme Court judgment
- The Cauvery basin is legally a deficit basin — no new storage projects permitted without consent of all basin states
- Project lacks consent from Tamil Nadu and lacks Central Government clearance
- Urges the Centre to deny all technical, environmental, and other clearances
Timeline of the Dispute
CM Vijay had already written to PM Modi on this issue in late May, and directed officials at a Secretariat meeting on May 25 to fast-track legal measures. In May 2026, the Supreme Court dismissed Tamil Nadu’s review petition as “premature,” noting the project remains at the Detailed Project Report (DPR) stage under Central scrutiny — meaning no construction approval has been granted yet. With the legal route temporarily stalled, the government escalated to a formal Assembly resolution, the strongest political (rather than judicial) tool available to register opposition.
Karnataka’s Position
Karnataka, where the project would be built near Kanakapura, argues Mekedatu is essential for Bengaluru’s drinking water needs and limited hydropower generation, and maintains it will not reduce Tamil Nadu’s share of Cauvery water. Karnataka Deputy CM D.K. Shivakumar has called it the “heart of southern states’” water security and said Karnataka remains committed to proceeding once central approval is granted, while offering to engage in talks with Tamil Nadu.
Live Broadcast Controversy — Furore in the House
The June 19 session also witnessed a significant controversy beyond the Mekedatu resolution itself. Minutes into the session, a furore broke out over the alleged abrupt halting of the live broadcast of the Motion of Thanks debate — which occurred just after the Assembly passed the unanimous Mekedatu resolution. Opposition parties alleged the telecast was selectively cut off mid-debate, sparking accusations of a lack of transparency.
DMK MLA Nagenthran told reporters: "During the election campaign, Vijay promised that all Assembly proceedings would be telecast live without any hindrance. Now, the live telecast was suddenly stopped during the debate on the Governor's address. The people of Tamil Nadu have the right to directly witness their elected representatives raising public welfare issues. Obstructing this goes against democratic traditions."
TVK ministers and supporters maintained the government's commitment to transparency — pointing out that full live coverage was available on certain channels from 9:30 AM to 11:00 AM, suggesting the interruption may have been partial rather than total. No official statement was issued by the Assembly Secretariat explaining the precise reason for any interruption in the broadcast. The Assembly Secretariat did not issue an official clarification on the matter.
- Opposition (DMK): Alleged the broadcast was deliberately cut; called it a violation of the CM's own election promise of fully transparent Assembly proceedings
- TVK: Said coverage was available on certain channels; denied deliberate suppression; reiterated commitment to democratic functioning
- Assembly Secretariat: No official explanation issued as of the session's close on June 23
A Rare Cross-Party Moment
The resolution’s significance lies less in its immediate legal effect — Assembly resolutions are not binding on the Centre — and more in the political signal of near-total unity it sent. With DMK, AIADMK-aligned voices, Congress, and the Left all backing the TVK government’s position, Vijay used the moment to position Tamil Nadu’s water rights as above party politics, even as opposition parties separately criticised the Congress — a national ally of the TVK coalition — for reportedly taking a different stance on Mekedatu at the central level.
