On Thursday, the Supreme Court mandated that the hill state release an extra 137 cusecs of water to Delhi and instructed Haryana to ensure the smooth passage of this water from Himachal to the capital.

"The Haryana government should allow the flow of water, which is being received from Himachal, to reach Wazirabad in Delhi without any hindrance so that the people of Delhi get drinking water," the court said.

Haryana, however, argued that there is no mechanism to measure and separate the additional water received from Himachal.

A vacation bench of Justices Prashant K Mishra and KV Viswanathan noted that Himachal had agreed to supply the additional water and rejected Haryana's argument.

There should be no politics over water, the bench said.

"There is no dispute that Delhi is going through a severe crisis of drinking water in the heatwave. Haryana is also going through a heatwave but there is no data of water shortage," said the court.