12 firms submit DPR bids for development of WSS in four towns in Assam November 15, 2023 | Key Segments, Municipal Water Supply, Tenders, Water Supply A total of 12 firms submitted bids for preparation of detailed project report (DPR) for development of water supply system (WSS) in GoalPara, Golaghat, Dhubri and Bongaigaon towns of Assam. This content is restricted.