Work of Supply, Civil and ETC of additional 220kV & 132kV Potential Transformer bays at Various EHV S/ stn under EHV ( O & M ) Division, Ballarshah. ( excluding Supply of 220kV & 132kV PT, 220kV & 132kV Isolators, 4Cx2. 5sq. mm & 7Cx2. 5sq. mm Control cables ).