In 1854 the designation of South-West Frontier Agency was changed to Chota Nagpur and it began to be administered as a Non-regulation province under the Lieutenant Governor of the then Bihar. It was changed to Chota Nagpur by Act XX of that year, and was administered thereafter as a non-regulation province under the Lieutenant-Governor of Bengal Presidency. The title of the chief administrative officer was changed from Agent to Commissioner, and the officers in charge of the districts became Deputy Commissioners.
In 1854, the South-West Frontier Agency's name was modified to Chota Nagpur, and it started being governed as a non-regulation region under the Bihar Lieutenant Governor. This change was implemented by Act XX that year, and it remained governed as a non-regulation province under the Bengal Presidency Lieutenant-Governor. The chief administrative officer's title was changed from Agent to Commissioner, and the district officers became Deputy Commissioners.