[3] The last ruler of the state, Raja Aditya Pratap Singh Deo, signed the merger agreement acceding to the Indian Union on 18 May 1948.

After the war, the East India Company included the Saraikela princely state under the governance of the Chhota Nagpur Commissioner.

[citation needed] In 1912 Saraikela came under the authority of the province of Bihar and Orissa, which was newly created from the eastern districts of Bengal.

This was supported by Patayet Sahib Maharajkumar Bhoopendra Narayan Singh Deo, third son of Raja Aditya , as a result of which he was imprisoned to ensure the popular movement died down.

On the basis of the Baudkar commission report, Saraikela and Kharsawan princely states were merged with Bihar on 18 May 1948.