Tender for Construction Of 17 Nos. Ventilation Stoppings, 02 Nos. Air Crossing 03 Nos. Re-construction (old) For Reorganisation Of Ventilation System In Proposed Depillaring By Lhcm In Mk(top) Seam Of Bartarai Colliery, Amadand Ug Sub Area, Jk Area. in Bilaspur - Chhattisgarh

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