Tenders for Carrying Out Operation And Maintenance Of 04 Nos.33/11 Kv Sub Stations At 1.Yerraguntla Estate Ss, 2. Yerraguntla Town Ss 3. Yerraguntla Estate Ii Ss 4.Mahatma Nagar Ssround The Clock On Work Contract Basis As Per Scope Of Work In Yerraguntla Town Section In O Sub-Division Yerraguntla Of O Proddatur Division In O Circle Kadapa Manning Of 33/11 Kv Sub-Stations In Kadapa Circle