Explanation:

The largest coal reserves of India are found in Jharkhand. Jharkhand has the first rank in coal reserves and its production. Most of the coal fields in the state of Jharkhand are located in a narrow belt running in the east-west direction almost along 24 degrees north latitude from the Gondwana period. The main coal mining centres of the state are Auranga, Bokaro, Dhanbad, Jharia, Giridh, Karanpur, Ramgarh and Hutar.