Operation And Maintenance Of Pumping Machineries, Sub-Station11/0.433 Kv, 2 X 400 Kva Transformer, Yard Lighting And Gaseous Chlorination System At Boosting Station At Amdohi Mouza Under Gourbazar-Ichpur An Jamgara-Jagannathpur Water Supply Scheme Wbphed/Ee/Amd/ Niet-40 Of 2025-2026/39