A. Complete Repairing Rewinding And Overhauling Of 630Kva 6.6Kv/440V 3 Phase 50 Hz Make Oil Cooled Transformer Of Ob Dump Rajmahal Ocp. B. Complete Repairing Rewinding And Overhauling Of 160Kva 6.6Kv/440V 3 Phase 50 Hz Make Oil Cooled Transformer Of Lalmatia Substation Rajmahal Ocp.