Laying of by- pass distribution pipe line from tube well 1 to distribution network of water supply system of Jatragachi RR Plot within Action Area- II of Newtown, Earthwork in Excavation at WTP campus and carrige of the same by Mechanical Transport, unloading at AA IIIC, Street no. 927 canal side, Repairing and painting boundary wall of Tube site ( 2nd ) of Distribution System, Ta