The two states are already locked in a border dispute and the matter is pending before the Supreme Court.
The state government had appointed a panel under the chairmanship of the Water Resources Department’s former principal secretary Nandkumar Wadnera to study the impact of Karnataka raising the height to 524 metres and its effect on flooding in Kolhapur and Sangli, Fadnavis said.
The study panel was set up after the devastating floods of 2019 in the two Maharashtra districts.
The Wadnera report, submitted on May 27, 2020, said there would be no adverse impact in Kolhapur and Sangli if the height of the dams of Alamaty and Hippargi on the Krishna was raised.
However, in September 2021, Wadnera wrote to then-chief minister Uddhav Thackeray, stating that when the report was prepared, there was no information about check dams in Karnataka which could lead to flooding in Kolhapur and Sangli.
“We will bring this to the notice of the Supreme Court and request Karnataka to stop the work till the time our study is not over, as it can have a very adverse impact on Maharashtra. If they don’t agree, then, parallelly, we will approach the Supreme Court to stop the work,” Fadnavis said.