Section 49(4)(b) in Chota Nagpur Tenancy Act, 1908
(b)on the application of the landlord of a tenure or holding and on being satisfied that he is desirous of acquiring any land within the said tenure or holding for the purpose of mining or for any other purpose which the [State] Government may by notification declare to be subsidiary thereto or for access to land used or required for such purpose, and after such inquiry as the Deputy Commissioner may think necessary, authorise the acquisition by landlord of such land or part thereof upon such conditions as the Deputy Commissioner may think fit, and require all persons holding interests directly or indirectly subordinate to him in the land to sell their interest to the said landlord upon payment to every such holder or such compensation as the Deputy Commissioner may determine.