construction of all civil and electrical and mechanical works under tyada g.o.v. pumping water supply scheme of block jaunpurdistrict tehri garhwal, consisting of supplying, laying & jointing of mserw / medium pipes in rising main, gravity main and distribution system, pump house cum guard room, clear water sumps / reservoirs with complete installation, testing, commissioning of pumping plants, along with all other appurtenant works, including confirmative survey, design / checking of design of different structures / pipe line etc. complete, 12 months maintenance & handing over all executed works to competent maintenance authority.