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 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

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 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

Installation of underground substation in rviib seam and power circuit arrangement behind load centre from rviic and rviib seam of cm project at nakrakonda kumardihi b colliery under bankola 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 5 nos pump foundation in rviia seam and rviib seam of no 3 and 4 pit unit of kumardihi a colliery

Construction of 10 nos man holes at drifts from rviic to rviib seam and roof bolting supports at minus 8l to minus 6l along minus 6d in rviic seam of cm project under nakrakonda kumardihi b 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

Repairing of voldrum make tugger haulage drum from rviia to rviib for material transportion of kumardihi a colliery