The most important Gondwana coal fields that lie in the Jharkhand-Bengal coal belt of India are located in the _____________.

Correct option is C

​The correct answer is (c) Damodar Valley​

Explanation: The most important Gondwana coal fields in the Jharkhand-Bengal coal belt of India are located in the Damodar Valley.

Information Booster: 

• Gondwana coal is a superior quality coal that forms India's metallurgical grade.
• It is found in the Damodar, Mahanadi, Godavari, and Narmada valleys.
• About 80 per cent of the coal deposits in India is of bituminous type and is of non-coking grade.
• The most important Gondwana coal fields of India are located in Damodar Valley.