India, Nov. 11 -- New Delhi

The Delhi Urban Shelter Improvement Board (DUSIB) has informed the National Green Tribunal (NGT) that sewage from a 2,511-household slum cluster in south Delhi's Rangpuri Pahari was diverted into a nearby pond by the Delhi Metro Rail Corporation (DMRC) during construction of the underground Mahipalpur Metro station in 2024, allegedly without informing the shelter agency.

The diversion led to wastewater accumulating in the pond and eventually overflowing, DUSIB said.

In a status report filed before the tribunal in an ongoing case dated November 5, DUSIB said sewage from the cluster, known as Rangpuri Pahari, was earlier discharged into a larger drain constructed by the Public Works Department (PWD) near Vasan...