Construction of 50 nos. bricks ventilation stoppings in g-iii bottom seam at bagdewa ug mine, korba area.

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 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.

Construction of 6(six) nos of ventilation stopping in no1 pit satgram (rv) seam at jk nagar colliery

Construction of 11(eleven) nos of 0.25m thick ventilation stoppings for proposed panel bsp 6 in no.3 pit, bogra seam (rvi) of jk nagar colliery

Construction of 5 nos. of 0.25m thick ventilation stoppings and for repairing of 2 nos. of ventilation stoppings for the proposed panel bsp7 at bogra (rvi) seam of pit no. 3, j. k. nagar colliery

Construction of 17 (seen) nos. of 0.38m thick ventilation stoppings in pit no. 1, satgram (r-v) seam at j. k. nagar (r) colliery

Construction of 15 nos of ventilation stoppings for establishing ventilation towards proposed drifts in satgram (r-v) seam at chapui khas colliery

Construction of 11 nos. of 0.25m thick ventilation stoppings for the proposed panel bsp-8 at bogra (r-vi) seam of pit no. 3, j. k. nagar (r) colliery