Authorities in Mumbai are investigating allegations that construction and demolition waste from redevelopment sites was illegally diverted to unauthorised dumping locations, raising serious environmental and regulatory concerns for the city's booming real estate sector.

The BMC has informed the Bombay High Court that 662 out of 1,954 construction sites in Mumbai lack mandated air quality monitors, prompting enforcement action through show-cause and stop-work notices.

The Delhi Environment Department fined four sites ₹10 lakh each for dust pollution violations during a GRAP inspection near IGI Airport.