Electrical Construction/Bza: Guntakal Division - Redevelopment Of Tirupati Railway Station - Provision Of 33/0.433 Kv Substation With Associated Electrical Arrangements As Part Of Tpty Station Redevelopment Works.Electrical Construction/Bza: Guntakal Division - Redevelopment Of Tirupati Railway Station - Provision Of 33/0.433 Kv Substation With Associated Electrical Arrangements As Part Of Tpty Station Redevelopment Works.,