Association secretary, S Nallasami claimed that there were no statistics about the quantum of water being utilised by Karnataka.
Talking to PTI, he blamed all the four Governments-Tamil Nadu, Karnataka, Kerala and Puducherry, and Centre for the mess in solving the vexed issue, which frequently led to violent incidents.
Nallasami said the Centre should immediately come forward and constitute the Cauvery Water Management Board to monitor and gauge the real utilisation of the water.