Work Of Complete Overhauling Of Bottom Ash Hopper And Its Connected Parts Such As Seal Trough, Seal Plate, Flushing Nozzle, Drip Shield, Refractory Cooling Pipes Etc. On As And When Required And Aoh-Coh In Ash Plant Unit 3 To 5 At Ukai Tps. (Wt-5018 Ahp-2).