In the latest episode of the Cauvery water dispute Tamil Nadu has objected to Karnataka’s controversial Koramangala-Challaghatta (KC) Valley treated water project. The Tamil Nadu government on Tuesday filed a petition with the Supreme Court alleging that the project violates the Supreme Court order. Tamil Nadu claimed that the apex court had ordered Karnataka to discharge all treated water into the river. 
“In the guise of utilising sewage water, the scheme provides for pumping surplus water of Varthur tank to a series of tanks in Kolar district for increasing the utilisation and thus preventing the surplus of Varathur tank flowing to Pennaiyar river. It is another devise for increasing the irrigation and other new uses,” the TN government told the apex court.
The KC Valley Project transports treated (primary and secondary) water from Sewage Treatment Plants in Bellandur and Varthur lakes in Bengaluru to 126 minor irrigation tanks in the perennially arid district of Kolar. The decision was made in a bid to solve the water woes of the district. It was thought the water, which would be fit only for agricultural use would also improve the groundwater table.