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

Repairing and re-plastering of 8 no ventilation stoppings in rviia seam of no 3 and 4 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

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.

Drilling of 2 nos. nx size non coring upward borehole from rviic seam (at 9a development panel) to rviia seam of cm project under nakrakonda kumardihi b colliery

Construction of 9 nos. sectionalisation stoppings to sectionalize the cm development panel 3 at rviic seam of cm project under nakrakonda kumardihi b 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.

Repairing of 13 nos ventilation stoppings at dishergarh seam of ningah colliery