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TN seeks ‘proportionate’ Cauvery water, SC advises State to take it up with CWMA

The court sought an updated report, and posted the case for further hearing on August 31. The Supreme Court advised the Tamil Nadu government on Monday to take up its contention that it has yet to be given the “proportionate” quantity of Cauvery water due from Karnataka. Appearing before a Bench headed by Justice Vikram […]

By deepak · August 24, 2026 · 3 min read

The court sought an updated report, and posted the case for further hearing on August 31.

The Supreme Court advised the Tamil Nadu government on Monday to take up its contention that it has yet to be given the “proportionate” quantity of Cauvery water due from Karnataka.

Appearing before a Bench headed by Justice Vikram Nath, senior advocate CS Vaidyanathan, for Tamil Nadu, submitted that the “Cauvery Water Management Authority (CWMA) is not giving directions to make up the proportionate quantity I (Tamil Nadu) must receive”.

Justice Nath said then Tamil Nadu must raise the issue with the CWMA itself, adding that “here the issue was about Karnataka not giving you water at all”.

“As of morning, we have got some water. It was in deficit yesterday,” Vaidyanathan said.Senior advocate G Umapathy, for Tamil Nadu, said the shortfall of water as per the pro rata formula was 17.414 TMC as of August 23. Vaidyanathan said “today they have about 78 TMC in the reservoirs”.

The court noted Vaidyanathan’s submission that the CWMA was meeting on August 25, 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.

An affidavit filed by Karnataka in the apex court recently had submitted that it was able to overcome the challenges of a distress year and worsening El Nino conditions to ensure the supply of water from its Kabini reservoir due to large inflows owing to good rainfall in the Wayanad area above the Kabini catchment which lies in Kerala.

“The releases from the KRS and Kabini reservoirs have already been reflected at the inter-State border at Biligundlu,” Karnataka had maintained in the affidavit.

However, Tamil Nadu had filed an additional affidavit in the Supreme Court recently, arguing that Karnataka’s release of water was “never voluntary compliance”.

Previously, on August 3, Tamil Nadu had urged the court to direct the CWMA to issue an 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.

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