Construction of 20 nos 0.38m thick ventilation stopping for 6wl dev district in rviib seam at no 3 and 4 pit unit of kumardihi a colliery
Construction of 20 nos 0.38m thick ventilation stopping for 6wl dev district in rviib seam at no 3 and 4 pit unit of kumardihi a colliery
Civil Work Tenders