Nothing contained in the preceding section shall effect the rights of any under-tenant in any alluvial land under the provisions of clause 1, section 4, Regulation XI, 1825.

It shall be the duty of all officers making settlements of such land, whether the land be settled separately or incorporated with the original estate, to ascertain and record all such rights according to the rules prescribed in Regulation VII, 1822; and to determine whether any and what additional rent shall be payable in respect of the alluvial land by the person or persons entitled to any under-tenure in the original estate.

The provisions of the said Regulation, so far as the same may be applicable, are hereby declared to extend to all settlements made under this Act.