Quantity of water received by State exceeds quota for third year in a row For the third year in a row, Tamil Nadu received a higher quantity of Cauvery water during the water year 2020-21 (June-May) than its quota. Against the 177.25 tmc ft (thousand million cubic feet) prescribed by the Supreme Court, the State realised 34 tmc ft in excess. As per the readings taken by the Central Water Commission in Biligundlu on the inter-State (Karnataka-Tamil Nadu) border, it netted around 211 tmc ft from June 2020 to May 2021. But this was lower than what Tamil Nadu got in the previous two years — approximately 405 tmc ft in 2018-19 and 275 tmc ft in 2019-20.