water quality

A dredger at work in the Ganga river. Photo: Mayukh Dey

CPCB Says No ‘Significant Improvement’ in Water Quality of Rivers During Lockdown

Centre to Ban RO Systems In Places Where Water Quality Meets BIS Norms

Smooth-coated otters in Thoothapuzha. Credit: Revi Unni

Otters Return to a Revitalised Kerala River