Karnataka credits rain for Cauvery water allotment to Tamil Nadu; TN says it was not voluntary and seeks more water
Tamil Nadu maintained that only 19.49% of the allocated Cauvery water has been realised from Karnataka
Karnataka defended its water release to Tamil Nadu at Biligundlu on Thursday (August 13, 2026) in the Supreme Court of India, citing favorable rainfall during a distress year. The CWMA had previously mandated Tamil Nadu to receive 3,500 cusecs of water daily from Biligundlu until August 12, but Karnataka argued it was able to fulfill its obligations due to high inflows from Wayanad area above the Kabini catchment, which lies in Kerala.
Karnataka released 164,080 cusecs from its reservoirs between July 29 and August 10, surpassing the 45,500 cusecs expected under the 9th recommendation of the CWRC upheld by the CWMA. However, Tamil Nadu contended that Karnataka's release was not voluntary compliance and that it failed to supply the water at a pro rata basis. The CWMA only directed Karnataka to supply 15.552 TMC from August 12 for a period of 15 days, and Tamil Nadu has sought the court to direct Karnataka to release the remaining 21.357 TMC due as of August 12 and an additional 37 TMC from August 12 to August 31.
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