Construction of 50 nos. bricks ventilation stoppings in g-iii bottom seam at bagdewa ug mine, korba area.

Construction of 5nos ventilation stoppings at rviic seam to establish the ventilation route of rviib seam of cm project under nakrakonda kumardihi b colliery

Construction of 16 nos supporting pillar (1.0m x1.0m) thick in rviia seam, rviib seam and rviic seam of no 3 and 4 unit of kumardihi a collierv

Repairing and re-plastering of 8 no ventilation stoppings in rviia seam of no 3 and 4 unit of kumardihi a colliery

Construction of 25 nos supporting pillar (1.0 m x 1.0 m) thick in rviia seam rviib seam and rviic seam of no. 3 and 4 unit of kumardihi a colliery.

Construction of 17 (seen) nos. of 0.38m thick ventilation stoppings in pit no. 1, satgram (r-v) seam at j. k. nagar (r) colliery

Construction of 0.5m thick brick supporting wall at 3 no. pit bottom in rviia seam and in rviic seam of no. 3 and 4 pit unit of kumardihi a colliery.

Construction of 18 nos. 0.38m thick ventilation stopping for 15r development district in rviib seam at no. 3 and 4 pit unit of kumardihi a colliery

Reorganization of ventilation circuit at 30l w in rviia seam in millennium incline unit under shankarpur colliery.

Reorganization of ventilation circuit by construction of 12(twelve) nos. of rcc ventilation stopping for establishing ventilation circuit at rviia seam of shyamsundarpur colliery