Detail Surveying Total Station/ Gnss - Dgps, Collection Of Hydrological Data, Designing, Detailed Engineering, Construction, Supply, Installation And Commissioning Of Surface Water Based Multi-Villages Piped Water Supply Scheme Having 31.80 Mld Million Litre Per Day Capacity Wtp For Arsenic-Affected Areas In Matihani Block And Adjoining Areas Under District Begusarai , Bihar On Turnkey Basis.