Vishal Progressive emerges as L1 bidder for development of SWD network in Mint Colony, West Bengal January 10, 2025 | Awarded, Key Segments, Municipal Wastewater, Project Updates, Tenders, Wastewater Consortium led by Vishal Progressive has emerged as the lowest (L1) bidder for development of storm water drainage (SWD) network in Mint Colony, West Bengal. This content is restricted.