The Cauvery Waters Tribunal had drastically reduced the share of water to Karnataka towards domestic and industrial purposes. This was done on the ground that only 1/3rd of the city of Bangaluru falls within the river basin and also on the presumption that 50% of the drinking water requirement would be met from ground water supply.
The Supreme Court while dealing with this issue said that the view taken by the Tribunal ignores the basic principle pertaining to drinking water and is, thus unsustainable. Keeping in mind the global status that the city has attained, an addition of 4.75 TMC is awarded to Karnataka.
In totality, we deem it appropriate to award to the State of Karnataka an additional 14.75 TMC of water, i.e., 10 TMC (on account of availability of ground water in Tamil Nadu) + 4.75 TMC (for drinking and domestic purposes including such need for the whole city of Bengaluru), the court said.