Enviro Infra emerges as L1 bidder for implementation of 15 mgd Zindpur WWTP Project in Narela, Delhi December 8, 2025 | Awarded, Key Segments, Municipal Wastewater, Project Updates, Wastewater Enviro Infra Engineers Limited (EIL) has emerged as the lowest (L1) bidder for implementation of 15 mgd Zindpur wastewater … This content is restricted.