Thanjavur, Aug. 5 -- The Tamil Nadu unit of the BJP today observed a day long fast in protest against Karnataka's move to construct a new blancing reservoir at Mekedatu across River Cauvery.

The fast, led by BJP State President K Annamalai, was to urge the Karnataka government not to go ahead with the dam construction as it would affect the farmers of Tamil Nadu.

Soon after taking oath as the Karnataka Chief Minister Mr Basavaraj Bommai had said: "Our stand on Mekedatu is very clear. Legally we are on the right side. It is our right to utilise surplus water in the Cauvery basin."

Mr Annamalai said the fast was being held on behalf of the farmers' wing of the party.

"Despite the Union Water Resources Minister clearly stating that t...