Estimate for preparation of cm marching route along main dip ( incline no.2) between 0l to 17l and level gallery 17level east between main dip ( incline no.2) to 45 dip and 45 dip between 17l to 19l in seam-i of katkona 1 and 2 incline.

Stone drivage of 01 no. of drift from surface to seam-i of katkona 1 and 2 incline of katkona sub area.

Construction of rcc side wall for strengthening of roof and side at mamc dip between 14l to 15l and 19le mamc dip (main riding gallery) in seam-i of katkona 1 and 2 incline.

Drivage along stone floor and shelly coal roof for cm marching route in rvi seam at mic of jhanjra project colliery

Drivage of 3 nos drift in r vii seam crossing the fault along different dip in sector f at 3 and 4 incline unit of jhanjra proejct colliery

Drivage of stone drifts 02 nos. first drit d13 (131.76mx4.80mx3.0m) from 3lw/16 dip in seam-iii to bunker sb2 in between seam-iii and i ) for coal evacuation and second additional drift from seam-i main dip 1/14l to bunker sb2 (99.94mx3.00mx1.80m) (

Drivage of 02 nos. underground stone drift from seam-i and seam-ii to seam -v of katkona ro ug mine of baikunthpur area (3rd call) (refer nit)

Drivage of 02 nos. underground stone drift from seam-i and seam-ii to seam -v of katkona ro ug mine of baikunthpur area (2nd call) (refer nit)

Drivage of drift/gallery along 4th dip in between 24 level and 26 level in kalimati seam under kumardhubi colliery.

Estimate for preparation of site for widening and heightening of fan drift with support from incline no. 02 between fan mouth to drift end upto seam iii of katkona 1and 2 incline.