Explanation:

Medininagar (formerly Daltonganj) is a city municipal corporation in the Indian state of Jharkhand. It is the headquarters of Palamu division and Palamu district, as well as the subdivision and block of the same name. The city is situated on the banks of the North Koel River. It is one of the towns of state with historic significance.

The city was named Daltonganj during the British Raj after Irishman Colonel Edward Tuite Dalton (1815–1880), an anthropologist and the commissioner of Chota Nagpur in 1861. The name was changed to Medininagar in 2004 by the State Government of Jharkhand.The former name is still retained in the name of the city's railway station. It is administered by the Medininagar Municipal Corporation, which was formed on 30 May 2015. The city is named after Raja Medini Ray of Chero dynasty.