design, construction, supply, testing and commissioning of piped water supply schemes for habitations left out under “har ghar nal ka jal” nischay yojna in areas having ground water quality issues; with electric driven pumps and iron removal treatment plant having technology (adsorption/ ion exchange/ membrane/ nano technology/etc.) certified by csir or any other institute of national repute. in the district of purnea bihar on turn-key basis with 06 months trial run period and comprehensive operation and maintenance of 60 months under mukhyamantri grameen peyjal nishchay yojna (quality affected), in gp-goripur (3b,7b,9b,10b,11b,12b), nathpur (2b, 3b, 4b, 12b, 13b, 14b), laxmipur (1b, 5b, 12b), mathihani (1b,5c,6b,7b, 8b,11c,12), bhatsara (7b, 11b), mulikiya (1b,5b,6b,7b, 8b,10b,13b, 14c),basudeopur ( 11b,12c),aurahi (1b, 5b, 7b), barhara (1b,3c,5b,8b), latraha (1b,2b,4b,5b, 6b,7b,8b,9b,10b,11b,13b),nipaniya (2b,3b,4b,7b,10b), sukhsena east (2b,3b,4b,5b,11b) of block b.kothi (total- 62 nos. schemes) under p.h. division, dhamdaha