Section 655(4) in Greater Hyderabad Municipal Corporation Act, 1955
(4)Any order against which an appeal might be brought under sub-section (1) shall, if no such appeal is brought, become operative on the expiration of a period of thirty days from the date of such order and shall be final and conclusive as to any matters which could have been raised on such an appeal and any such order against which an appeal is brought shall, if and so far as it is confirmed by the Judge or the High Court under sub-section (2) as the case may be become operative as from the date of the final determination of the appeal.