Fishermen say that effluents from factories in the adjacent locality of Poosaripalayam were let into the lake killing the fish. "We plan to give a petition to the collector soon," said M Muruganandam, leader of the fishermen's association. "The fish were fine on Wednesday night. About three lakh fish died overnight causing us a huge loss," he added.

Dyeing units in Telungupalayam and Poosaripalayam have been letting effluents into the lake constantly. Recently, most of the dyeing units in Telungupalayam were shut down as they were found to be polluting the area. Source