Item- Supply and Erection for the work of ”Replacement of 14 nos 33kv SF6 CUM AIS Bay with 33kv Double Bus GIS Panel along with 2 no new transformer LV Bays, 01 no B/C Bay, 2 ETR, 1 SST, 2 PT Bay at Bagnan 132/33kv Gas Insulated Sub-Station on Turn-Key basis. (WEST BENGAL STATE ELECTRICITY TRANSMISSION COMPANY LTD)