water supply scheme & sewerage scheme ( under mahagram yojna ) 1. water supply scheme:- “providing, testing, commissioning of 6 no. tubewells with required pumping sets, panel boards, pump chamber wiring electric connections etc. with all material 4 no. boosting station with rcc underground tanks pump chamber boundary wall, pumping machinery all electric works, 100 mm i / d to 300 mm i / d rising main and distribution di pipe line, all renovations and reconstruction of roads / streets, specials etc. and all other works contingent thereto with 3 months trial run period ( testing and commissioning ) and thereafter one year defect liability period and further o & mtc. for 5 years complete in all respect”.2. sewerage scheme- “providing, laying, testing, commissioning of sw pipe sewer of 200 mm i / d to 400 mm i / d rcc np-3 of 450 mm i / d, 500 mm i / d hdpe of 630 mm o / d, construction of mps, 4 mld capacity stp ( sbr based technology ) , boundary wall etc. and making trenchless connections at designated places, construction of manhole chambers and all other works contingent thereto with 3 months trial run period ( testing and commissioning ) and thereafter one year defect liability period and further o & mtc. for 5 years complete in all respect”.