India, Oct. 16 -- Reports of possibly thousands of dead fish along the Yamuna near Burari in north Delhi since Wednesday night have raised concerns among activists and independent experts about the health of the river's aquatic ecosystem. The deaths have been reported in a stretch generally considered relatively cleaner than other parts of the river in Delhi and from where the Capital draws water for drinking.

A similar incident was reported near Burari in May 2025, when thousands of dead fish were seen floating in the river. Locals then alleged that chemical waste discharged from Haryana through canals had contributed to the deaths.

Wildlife enthusiast and conservationist Hemant Garg, who spotted the dead fish on Wednesday night, said ...