Design, Supply, Erection, Testing And Commissioning Of 25 Kv, 50hz Single Phase A.c. Traction Overhead Equipment With 65sq.mm Catenary And 107 Sq.mm Hdg Copper Contact Wire, Lt Supply Transformer Stations Proposed Gooty-yard Modification With 2x25kv System, Renigunta-yard Modification With 1x25kv System, Remodeling Of Guntakal-yard Modification With 1x25kv System And Linganenidoddi - Yard Modification With 1x25kv System Of Gtl Division Under South Central Railway- Reg.