Comprehensive Operation, Preventive Maintenance & Repairs of Various type of Pipeline, Various type of Valves, Pumping Machineries and Electrical equipments etc. located at different Head Works and Sub Head Work sites including proper supply of potable Water to all the villages for 12 months period, including maintaining 0. 2 ppm residual chlorine in supplied water at each consumer end for Sani- II Regional WSS Taluka: Kalyanpur District: Devbhumi Dwarka based on Narmada Bulk PipeLine, NC- 21, Tal.- Kalyanpur Dist.- Devbhmui Dwarka. ( 2nd Attempt )