Q. Where are Jharia, Raniganj, Talcher, and Korba coalfields located respectively?
Answer: Jharkhand, West Bengal, Odisha, Chhattisgarh
Notes: Jharia coalfield is located in Jharkhand's Dhanbad district and has the largest coking coal reserves. Raniganj coalfield is in West Bengal, situated in the Damodar Valley, known for bituminous coal. Talcher coalfield is a major coal mining area in Odisha. Korba coalfield is located in Chhattisgarh, recognized as a key mining region.