Multiple choice Singbhum, Keonjhar and Mayurbhanj are famous sites for the exploration of bauxite iron ore coal manganese Reveal answer Fill a bubble to check yourself B Correct answer Explanation Singhbhum (in Jharkhand), Keonjhar (in Odisha), and Mayurbhanj (in Odisha) are all famous iron ore mining regions. These areas contain some of the richest iron ore deposits in India and have major mining operations.