Central Coalfields Limited (CCL) is a subsidiary of Coal India Limited (CIL), an undertaking of the Government of India. CCL manages the nationalized coal mines of the Coal Mines Authority, Central division. The registered and corporate office is at Darbhanga House, Ranchi, Jharkhand.It presently has 63 mines (26 underground, 37 open cast) in areas of East Bokaro, West Bokaro, North Karanpur, South Karanpur, Ramgarh and Giridih.