Complete Repairing And Overhauling Of 1 No. 400Amp., 11Kv, Ocb Make G.E.C Of Nagada Sub-Station At Bhatdee Colliery, Mahuda Group. Sl.No. Gec/Nagda- 1 Complete Repairing And Overhauling Of 1 No. 400Amp., 11Kv, Ocb Make G.E.C Of Nagada Sub-Station At Bhatdee Colliery, Mahuda Group.