Gurgaon: GMDA is set to act against illegal discharge of wastewater into the Leg-2 master stormwater drain by identifying and disconnecting unauthorized outlets along a 4km stretch.An agency will be engaged to trace and plug illegal sewage connections between Signature Tower and Bhimgarh Kheri, where untreated waste is being released into the stormwater system, leading to pollution.Apart from disconnecting these outlets, the agency will also undertake desilting of the drain. Officials said accumulated silt and debris have reduced its carrying capacity, contributing to frequent waterlogging during heavy rainfall.A GMDA official said the exercise is aimed at restoring the drain’s functionality ahead of the monsoon. “Illegal discharge into stormwater drains pollutes natural water channels. We have invited bids to help identify such points and ensure their disconnection, along with improving flow through desilting,” the official said.The project is estimated to cost Rs 1 crore and is expected to be completed within three months from the start of work.Leg-2 is a key component of the city’s drainage network. It originates in Sector 27 and drains into the Najafgarh drain, passing through sectors 29 and 41, NH-8, Atul Kataria Chowk, Sheetla Mata Road, Ashok Vihar, railway culvert No. 50, Dharampur village and Sector 107.In addition, GMDA is rebuilding a 1.4km stretch of the drain between Ashok Vihar and railway culvert No. 50 near Bhimgarh Kheri at a cost of Rs 17.6 crore. The project received financial clearance from the government last month.This portion has weakened over time, with sections partially collapsing and reducing flow capacity. While most stretches of the drain are covered, the Ashok Vihar segment remains an open brick-lined channel. It will be reconstructed as a covered reinforced concrete drain designed to handle higher flow.Built decades ago when the surrounding areas were less developed, the drain now faces pressure due to rapid urbanisation, with repeated waterlogging reported in areas such as Ashok Vihar, Atul Kataria Chowk and near Sheetla Mata Mandir during monsoon.