HNB Engineers emerges as L1 bidder for implementation of 100 mld MPS, 100 mld STP and Bio – CBG Plant at Dhanwapur Project in Haryana December 31, 2025 | Awarded, Key Segments, Municipal Wastewater, Project Updates, Wastewater HNB Engineers Private Limited has emerged as the lowest (L1) bidder for implementation of the 100 mld MPS, 100 mld STP and Bio … This content is restricted.