It will be appropriate at this stage to refer to the provisions of section 43(2)(rr) or the New Act which are as follows: "Where any permission referred to in Section 3 of the old Act has been obtained on any ground specified in subsection (1) or sub section (2) of Section 21, and has become final, either before the commencement of this Act, or in accordance with the provisions of this sub section, after the commencement of this Act, (whether or not a suit for the eviction of the tenant has been instituted), the landlord may apply to the prescribed authority for his eviction under Section 21, and thereupon the prescribed authority shall order the eviction of the tenant from the building under tenancy, and it shall not be necessary for the prescribed authority to satisfy itself afresh as to the existence of any ground as aforesaid, and such order shall be final and shall 846 not be open to appeal under Section 22: Provided that no application under this clause.