Provision of replacement of AC sheet trusses & gutters in LFS,LAS and LTS under SSE/BR(North),Provision of Replacement of Trusses in Flame cutting shop in workshop area under SSE/Br./South,Replacement of AC sheet in BGMG, ML 1, 2, 5 & 6, C-32, TTC, C-ward & B shop chimney in workshop area under SSE/Br./South,- Replacement of AC sheet in balance portion of B-shop bay-3 in workshop area under SSE/Br./South.