Design, Supply, Erection, Testing And Commissioning For Ohe Upgrade Of Existing 1X25Kv System To 2X25Kv At Feeding System With Feeder And Earthing Works In Gudur (Gdr) -Sri Venkateswarapalem(Svpm) Section Of Vijayawada Division Under South Central Railway Total 75 Rkm/226 Tkm