Repairing of five no pressure drum shell dia 215 mm x 1150 mm long shaft dia 75 mm of 1000 mm belt conveyors rvii and rviia seam installed in 3 and 4 incline j p 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

Drilling of 03(three) nos nx size horizontal boreholes in rviia seam of shyamsundarpur colliery

Drilling of 03 nos upward nx size non-coring boreholes from r-viii(a) seam to r-ix seam of proposed depillaring panel lks 17 in lower kajora seam at khas kajora 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

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

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 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 nx size upward vertical or inclined boreholes from bagdona seam to goaved-out panel of lower worka-ble seam or upper workable seam at tawa ug mine, pathakhera area, wcl

Drilling of nx size upward vertical or inclined boreholes from cm panel w7xcut of bagdona seam to goaved-out panel of lower workable seam or upper workable seam at tawa ug mine, pathakhera area, wcl.