New Delhi, Aug. 14 -- The National Green Tribunal (NGT) on Thursday directed the Uttar Pradesh Pollution Control Board (UPPCB) and local authorities to ensure that no unauthorised dyeing units operate in Prem Nagar, Loni, Ghaziabad, following a detailed investigation into large-scale environmental violations.

The case was filed by the Residents Welfare Association, Prem Nagar, alleging that several small-scale textile dyeing units were illegally operating without the necessary Consent to Operate (CTO), discharging untreated chemical effluents into local drains, and polluting groundwater. The waste ultimately flows into the Indrapuri drain, which meets the Yamuna River.

A joint committee, constituted by the Tribunal, inspected all 286 in...