Gurgaon’s dyeing units, concentrated in Sector 103, Basai, and Sector 36, continue to illegally discharge toxic effluents into the Najafgarh drain, eventually polluting the Yamuna River. Though these units appear abandoned, with gates locked, they remain active with workers accessing the premises through small gaps, while dyed garments dry behind closed doors. Residents report that the drain water frequently changes colour, depending on the dyes used, and carries a foul stench. Toxic chemicals such as lead and cadmium, found in dye effluents, pose severe risks to human health and aquatic life. Despite a 2013 court order to relocate such industries from residential areas, the dyeing units continue to operate unchecked. The Haryana Pollution Control Board has been directed to survey and take necessary steps against these illegal operations.