Drilling of nx-size underground non-coring bore hole up to a depth of average 6.30 meter each bore hole from sp top seam to sp middle seam for parting proves purpose through 27/28th incline of hariajam colliery due to contiguous working development s

03 three nos. u/g non-coring bore hole for degree of gassiness purpose at s.p. top seam of 27 / 28 incline of hariajam colliery.

Proposal for 01 no nx size coring bore hole at roof and 01 no nx size coring bore hole in riv seam at mic unit jhanjra project colliery

04 four nos. underground non-coring borehole for parting proves purpose in old working water logged area at g.p. seam through 5 and 6 incline of hariajam colliery.

01 one no non-coring vertical bore hole drilling 20 inch 500mm dia up to a depth of 182 meters from surface to water logged underground working sp middle seam near vt pump at kuhuka village at hariajam colliery.

Fallen coal recovery and cleaning and stacking of wash out material and debris at sp top seam through 27/28th incline of hariajam colliery.

03 (three) nos drilling nx size non-coring horizontal bore hole in present working district of bp seam (top) to prove the parting waterlogged working of bp seam (top) worked by badjna colliery towards west side boundary between hariajam colliery and

Drilling of 400mm non-coring vertical bore hole near sand bunker till r-v (satgram) seam at j. k. nagar (r) colliery

Drilling of 16 inch dia 01 no non coring pumping bore hole along plus 1l 21d from surface to rvi seam at mic jpc

Drilling 02 (two) nos. of 100mm non-coring horizontal bore hole at 42l/16d in r-v (satgram) seam at j. k. nagar (r) colliery