“Carrying Out Operation & Maintenance Including Watch & Ward, Housekeeping & Gardening, Mrt Assistance & Assistance For Telecom Of E.H.T Sub-Stations And Lines And Cbd & Sm Gangs For Lines & Sub-Stations On Works Contract Basis Pertaining To “220Kv Above & 400Kv Sub-Stations Pertaining To O&M Circle Ongole In Vijayawada Zone” For The Period Of Three Years From The Date Of Awarding Of Work ” Work-1 220Kv Above & 400Kv Sub-Stations