Construction of 6 nos rcc sectionalisation stopping and repairing of 116 nos. old ventilation stopping and 35 nos. old sectionalization stopping by use of fly ash brick for 10b seam at west jhagrakhand colliery.

Repairing of 29 (twenty nine) ventilation stopping in r-v seam, khottadih colliery, pandaveswar area.

Construction of 10 nos of ventilation stopping at development district of dishergarh r-iv seam of ningha colliery

Construction of 12 nos. complete ventilation stop-pings (fly ash bricks), in-cluding all material, in 32ln proposed depillaring panel, lws at tawa-ii mine, pathakhera area, wcl

21 (twenty one) nos fly ash (0.35m) thick ventilation stopping for ventilation re organisation in rviia seam no 2 pit tlb unit of tilaboni colliery

Construction of 15 nos fly ash ventilation stopping in rviia seam no.2 pit tlb unit of tilaboni colliery

3nos. drum sheet ventilation stopping in rviia seam no. 3 pit,ssp(o) unit of tilaboni colliery

Construction of 3 nos. 0.35m thick fly ash ventilation stopping in rvii a seam at mill. incline unit under shankarpur colliery.

One time single track for construction of sec. stopping in rviia seam no 3 pit,ssp(o) unit of tilaboni colliery

Construction of 8 nos fly ash brick ventilation stopping in rvii seam at shyamsundarpur colliery for ventilation reorganisation