¹[81A. (1) Except as otherwise provided in this Part, the rights and liabilities of a holder of non-agricultural land, who has become a tenant under the Government in respect of such land by virtue of the acquisition of the superior right in such land under the provisions of this Act, shall, where the provisions of the East Bengal Non-Agricultural Tenancy Act, 1949, applied to such land, at the time of such acquisition, be regulated by provisions of that Act. (2) The rights and liabilities of other non-agricultural tenants shall, except in the matter of determination, enhancement or reduction of rent, be governed by the terms of the lease and the provisions of the Transfer of Property Act, 1882: Provided that notwithstanding anything contained in this Act or in any other law for the time being in force or in any contract, no non-agricultural tenant shall sublet the whole or any part of his tenancy on any terms and conditions whatsoever and, if any tenancy or any part of a tenancy is sublet in contravention of this provision, the interest of the non-agricultural tenant in the tenancy or in that part of the tenancy, as the case may be, shall be extinguished, and the tenancy or the part of the tenancy shall vest in the Government from the date of such subletting free from all encumbrances.]