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

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.

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

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.

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.

Roof bolting job in sp top seam working district at different places of 27/28 no. incline of hariajam colliery.

Roof bolting job in drift b sp middle seam to bp top seam up to - 1st level through 27/28 no. incline of 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.

Roof bolting job in sp top seam in different places of working district through 27/28 no. incline of hariajam colliery.

Drilling of seven (07) numbers nx size coring borehole (20m each), from r-iv top to r-iv bottom seam of khottadih colliery, pandaveswar area