International competitive bids are invited for the extension of the 400 kV Cudappah substation; the 765 kV Kurnool substation; the 765 kV Nellore substation; the 765 kV Raichur substation; and the 765 kV Thiruvalam gas-insulated switchgear (GIS) substation under the Installation of Bus Reactors at Cuddapah, Nellore, Kurnool, Raichur and Thiruvalam Substations project.
