Explanation:

Rajmahal is a subdivisional town and a notified area in Sahibganj district in the Indian state of Jharkhand. It is situated at the banks of Ganges and was former capital of Bengal Subah under Mughal governor, Man Singh I.Rajmahal region was earlier ruled by Raja Mal sub-group of Mal Paharia tribes. Earlier this place was known as "Agmahal" and is surrounded by Rajmahal hills on one side and river Ganges on another side. The region was also known as 'Daman-i-Koh' during Mughal rule.In 1576, Battle of Rajmahal was fought between Mughal Emperor, Akbar and Sultan of Bengal, Daud Khan Karrani of Karrani Dynasty. After war, Daud Khan was captured and later executed by the Mughals.