The Supreme Court advised the Tamil Nadu government on Monday (August 24, 2026) to take up its contention that it was yet to be given the “proportionate” quantity of Cauvery water due from Karnataka with the Cauvery Water Management Authority (CWMA).
The court noted Mr. Vaidyanathan’s submission that the CWMA was meeting on August 25, 2026, and the State would raise the issue before the authority.
The court sought an updated report and posted the case for further hearing on August 31, 2026. Previously, on August 3, Tamil Nadu had urged the court to direct the CWMA to issue appropriate directions to Karnataka to make good, on a pro rata basis, the shortfall at the inter-State point of Billigundulu for the period from June 1 to August 12, and in this regard release, at the time, a little over 26 TMC of water. An affidavit filed by Karnataka in the apex court recently had submitted that the State was able to overcome the challenges of a distress year and worsening El Niño conditions to ensure the supply of water from its Kabini reservoir due to large inflows following good rainfall in the Wayanad area, which lies in Kerala, above the Kabini catchment.
However, Tamil Nadu had filed an additional affidavit in the Supreme Court recently, arguing that Karnataka’s release of water was “never voluntary compliance”.

