Explanation:

Dumka, the headquarters of the Dumka district and Santhal Pargana region, is a city in the state of Jharkhand, India. It was made the headquarters of the Santhal Pargana region, which was carved out of the Bhagalpur and Birbhum district after the Santal Hool of 1855. Dumka was carved out of the southern part of Bihar along with 18 other Districts on 15 November 2000 to form Jharkhand as 28th State of India. Dumka is a peaceful and green city and also sub-capital of Jharkhand. The nearest important cities are Rampurhat and Deoghar.