Mumbai's Kalu river throws up hundreds of dead fish, activist blames Ulhasnagar effluent surge

On Sunday morning, hundreds of dead and dying fish were found floating on the Kalu river. Environmental activists traced the issue to untreated effluents from dyeing units upstream in Ulhasnagar. Fishers from Nandkar and Atali collected the dead fish while reporting this phenomenon isn't uncommon. The water quality parameters indicated a significant decline in oxygen lev