Feedback Infra emerges as L1 bidder for DPR preparation of sewerage works in Gurugram and Manesar, Haryana March 31, 2023 | Announced/Approved, Key Segments, Municipal Wastewater, Project Updates, Wastewater Feedback Infra Private Limited has emerged as lowest (L1) bidder for the preparation of detailed project report (DPR) for implementation of sewerage works in Gurugram and Manesar. This content is restricted.