Congress support for Vijay may soften tone, not Cauvery tensions between Karnataka and TN

Bengaluru: The emergence of C Joseph Vijay as Tamil Nadu chief minister with support from Congress has triggered fresh debate in Karnataka over whether the new arrangement could ease tensions on river water sharing disputes and the proposed Mekedatu balancing reservoir project. Political observers say the arrangement is significant since Congress also holds the reins in Karnataka. They say it could lead to smoother communication channels between Bengaluru and Chennai, but caution that emotionally sensitive interstate disputes are unlikely to disappear. The Cauvery river water dispute remains the most contentious issue between the two states. Karnataka faces annual pressure to release water to Tamil Nadu as per directions of Cauvery Water Management Authority and the Supreme Court. The issue becomes politically volatile during years of poor rainfall and low reservoir storage. This year, concerns have intensified as India meteorological department (IMD) has indicated the possibility of a weak or patchy southwest monsoon. Water experts warn that below-normal rainfall could again sharpen tensions over reservoir management and water releases. Under the Supreme Court's 2018 verdict, Karnataka is required to release 177.2tmc of Cauvery water annually to Tamil Nadu in a normal water year. The quota is distributed across monthly schedules from June to May, with larger releases during the monsoon period. Political strategist MB Maramkal said the Congress factor may reduce public confrontation between the two states, but regional compulsions will continue to dominate decision-making. "Congress will try to ensure disputes are handled through institutional discussions rather than street-level political escalation," he said. "But no Karnataka govt can ignore farmers' concerns, and no Tamil Nadu govt can appear weak on Cauvery. Climate uncertainty will also make the dispute increasingly difficult for both states." Tamil Nadu has consistently maintained that Karnataka must adhere to the monthly release schedule fixed under the Cauvery tribunal award and Supreme Court orders, as farmers in delta districts depend on timely water flow for kuruvai and samba cultivation. However, Karnataka argues that drinking water needs of Bengaluru and irrigation requirements in the Cauvery basin must receive priority during distress years. The Siddaramaiah govt has repeatedly stressed rainfall and reservoir levels should be considered before water is released. The proposed Mekedatu project is expected to emerge as another major flashpoint. Deputy chief minister DK Shivakumar, who holds the water resources portfolio, is pushing the balancing reservoir project and plans to submit a detailed project report to the Centre by May-June. Karnataka argues the project is essential to supply drinking water to Bengaluru and generate 400Mw of power, while Tamil Nadu fears it could affect downstream water flow. Political analyst Vishwas Shetty said Vijay may initially adopt a softer approach towards Karnataka because of Congress support, but political realities could force a stronger stand. "AIADMK and DMK will closely watch Vijay's handling of Cauvery and Mekedatu. Any perception that Tamil Nadu is compromising will immediately become a political issue," he said.