India, Nov. 25 -- The Municipal Corporation of Gurugram (MCG) has ordered a high-level inquiry after an environmentalist allegedly caught the civic body's sewage tankers dumping untreated waste inside the Aravalli forests near Ghata and Bandhwari villages-an incident environmentalists call a serious violation on Monday.

The tankers, outsourced from the Delhi Jal Board (DJB) for routine sewage-lifting duties, were contracted to transport waste strictly to authorised sewage treatment plants (STPs). However, the contractor allegedly diverted loads of waste into forest depressions, leaving behind foul smell, contaminated soil and fresh pockets of sludge scattered across the eco-sensitive zone, said officials.

Officials said the misuse of ta...