Drilling of 5 no (five) nx size upward non coring boreholes (4 nos from rviic to rviib seam lowering the water of running development panels of rviib to rviic seam and 1 no from rviic to rviia seam for lowering the water from rviia to rviic seam) an

Drilling of 12 nos of nx size upward borehole from rviia to rvii seam for proving upper seam free from water at shyamsundar pur colliery

Drilling of 3 nos. of nx size incline upward borehole from rviia to r vil&#x0d seam for proving upper seam free from water at shyamsundarpur colliery.&#x0d

Drilling of 03 nos. nx size non-coring borehole from surface to kajora (r-ix) seam and 2 nos. nx size non-coring borehole from surface to jambad (r-viii) seam of porascole east colliery

Drilling of 03 nos. nx size non-coring borehole from surface to kajora (r-ix) seam and 2 nos. nx size non-coring borehole from surface to jambad (r-viii) seam of porascole east colliery

Drilling of upward borehole for longwall panel 13 from rvi seam to rviia seam at mic unit of jhanjra project colliery

Drilling of 03(three) no. nx size dia (ug) upward borehole in r-v (dobrana) seam at&#x0d belbaid colliery&#x0d

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

Construction of 5nos. 0.38m thick ventilation stoppings in rviia seam for reorganization ventilation for rviic seam of 3 and 4 pit unit of kumardihi a colliery