Avadi Municipality — sewage water is linked to arafat lake

I m staying in manikandapuram, near we have arafat lake which has many aquatic organisms. Recently the flats build across has put a pipeline which connects their sewage water to this lake. Due to this there is bad smell emitting from it and also many fishes died and the lake ecosystem is completely destroyed. The near by houses are suffering because of this. Please immediately take action against the flat builders.

Regards
Rajeshwari, susila, indra, kavitha, supriya,
Mohan, lakshmi.