Work Of Removal Of Old Damaged Refractory, Application Of The New Castable Refractory / Fire Brick Lining In Bottom Ash Hopper Of Unit # 6 At Gsecl Ukai Tps During Aoh, Coh, Rsd Or As & When Required Basis. (Ahp#6) Work Of Water Washing And Ash Lifting Of Esp Pass A, B, C & D For Boiler Unit # 6 At Ukai Tps. (Bmd-6 ) Work Of Cleaning Of Boiler Outside, Penthouse, Goose Neak, Cat House, Wind Box, Of Unit No. 6 At Ukai Tps.(Bmd-6 ).