survey, design andconstruction of works. constisting of supply carting laying & jointing and with welding at rising main mserw pipe 65 mm dia ( 4.00 mm thickness ) , source atagada river, intake well, 01 no pump house, rcc pre & post settling tank, rapid gravity sand filter, staff quarter, distribution main g.i. ( m ) pipes 20mm to 50mm from sump to service reservoir & reservoir to private conection, service reservoir, distribution system, 15kl to 50kl clear water reservoir and all other related works and all e&m work and carting of materials including supply of all materials, labours and t&p etc for proper completion of work other appurtenant work etc. complete and include additional 6 month maintenance and than handing over to maintenance body of bhalson pumping water supply scheme in block gairsain of district chamoli.