Complete Overhauling, Cleaning And Replacement Of Filter Media Of Arsenic Cum Iron Removal Plant Airp Of Capacity 45Cum/Hr At Paharpur Piped Water Supply Scheme Under Ratua-Ii Block Under Malda Division, Phe Dte. Wbphed/Ee/Md/Niet 40 2Nd Call Of 2025-2026, Sl.No.08