India, July 27 -- Representatives of several farmers' organisations in Tamil Nadu on Sunday urged Chief Minister C Joseph Vijay to reject Karnataka's invitation for bilateral talks on its proposal to construct a dam across the Cauvery at Mekedatu and other river water issues.

Farmers' leader P R Pandian said all water-sharing discussions should be conducted through the Cauvery Water Management Authority (CWMA), warning that direct talks between the two states could lead to unrest.

"Tamil Nadu Chief Minister must reject the Karnataka Chief Minister's invitation," Pandian said while addressing a district office-bearers' meeting of a farmers' coordination committee in Mayiladuthurai.

"Earlier, when such talks were called, contradictions a...