Tender For design, supply, erection, testing and commissioning for ohe upgradation of existing 1x25kv system to 2x25kv at feeding system with feeder and earthing works in khammam(kmt)(excl)- dornakal(dkj)(excl)-bhadrachalam road(bdcr) section of secunderabad division under south central railway. total 78 rkm/ 101 tkm