UPPSC 2017 General Studies I Solved Paper

(d) Gondwana coal makes up to 98 per cent of the total reserves and 99 per cent of the production of coal in India. The carbon content in Gondwana coal (250 million years old) is less compared to the carboniferous coal (350 million years old) which is almost absent in India because of its much younger age. Gondwana coal forms India’s metallurgical grade as well as superior quality coal.