Ventilators and Winding Engines Used in Coal Mines in Assam of North-Eastern India (2000 to 2004 and 2006) | |||||||||
State | Year | Ventilators | Winding Engines | ||||||
Main | Belowground | Electrical | Steam | ||||||
No. | Horse Power | No. | Horse Power | No. | Horse Power | No. | Horse Power | ||
Assam | |||||||||
India | |||||||||