Tenders for Operation And Guarding Of Gaseous Chlorination System At Ohr Site Zone-F Of Talanjuri Under Barjora Block Dist-Bankura Under Bankura-I, Ii And Barjora Block Surface Water Based Piped Water Supply Scheme Under Bankura Mechanical Division, P.H.E. Wbphed/Ee/Bmd/Niet-6 Of 2025-2026/100