Estimate For Water Supply Distribution Network With D.I. Hdpe Pipes, H.Y Tube Well , Motor, House Connection Under Multi Villages Surface Water Supply Scheme Bidupur For Area Situated In The Catchment Of Esr Chandpura Nanhakar 11-19 Block Bidupur Panchyat Kathaulia Ward No. 03, 04, 05 Of Vaishali District Under P.H.Division, Hajipur.