With the unprecedented flow continuing in the Cauvery, the focus now turns to whether Tamil Nadu’s realisation in the current water year (June 2022-May 2023) will exceed the 47-year high of around 455 thousand million cubic feet (tmc ft), which was recorded in 1975-76.
The pattern of flows, as registered then and now at Biligundlu on the inter-State border, indicates that the State is set to create a record. During the southwest monsoon (June-September) 47 years ago, the quantity of water realised was about 306 tmc ft. But the State received around 347 tmc ft until August this year. In the first week of September, the figure was approximately 45 tmc ft. Since June 1 till September 7, Tamil Nadu realised nearly 392 tmc ft.