Production of Coal from Opencast and Underground Mines by Technology in India (2017-2018) | ||
(In Million Tonne) | ||
Technology Adopted | ||
Total | ||
Opencast | ||
Mechanised | ||
Manual | ||
Underground | ||
Conventional B&P | ||
Mechanised B&P | ||
Conventional LW | ||
Mechanised LW | ||
Other Methods |