Modification/ Design, Supply, Erection, Testing and Commissioning of 25 KV, 50 Hz, AC Existing/ New SP/ SSP/ TSS and Electrification of SSP/ SP/ TSS buildings in connection with Doubling of Mahoba- Khairar Jn. and Doubling of Lalitpur- Birari Line with Flyover at Lalitpur of JHS division in N. C. Railway