Nctps I Se Mi Circle Aoh 25 26 Bm Unit I Flue Gas Duct Left Right Modular Replacement Of The Flue Gas Duct Portion At The Vulnerable Areas From Aph Outlet To Expansion Joint 3102 4054 272 Mm And Connected Flue Gas Duct Upto 15 Mtr Nctps I Se Mi Circle Boiler Maintenance Division Annual Overhaul Work For The Year 25 26 Specification No 106 25 26