Cleaning Of Equipment, Machine House (Gt & St), Floor, Control Room, Switchgear Room, Auxiliaries Rooms, Iac Shed, Gas Booster Compressor Shed, Cwp Area Etc. And Drain Cleaning Of Power House And Residential Area Of Bibiyana-À§·À§·À§·, 400 Mw Ccpp, Bpdb, Nabiganj, Habiganj.