WAPCOS Limited emerges as L1 bidder for Guwahati master drainage plan in Assam April 30, 2024 | Awarded, Key Segments, Municipal Wastewater, Project Updates, Tenders, Wastewater WAPCOS Limited has emerged as the lowest (L1) bidder for preparation of detailed project report (DPR) for Guwahati master drainage plan in Assam. This content is restricted.