Powers of Councillors etc. whose term stands extended and validation of certain acts

All Councillors, Presidents and administrators of the Municipal Councils and all Councillors and administrators of the Municipal Corporations, whose term of office is deemed to have been extended or is extended, as the case may be, under section 3, shall, throughout the extended period also (whether before or after the commencement of this Act) be deemed to have been and be competent to exercise all powers, perform all duties and discharge all functions as such Councillors, Presidents or administrators, as the case may be; and no act done by any of them during the period aforesaid shall be invalid, or shall be called in question in any Court, merely on the ground that the term of office was not extended in time or was not otherwise duly extended, or that during the extended period the Municipal Council, Municipal Corporation, Councillor, President or administrator could not exercise all or any of the powers or perform all or any of the duties or discharge all or any of the functions of the Council, Corporation, Councillor, President or administrator, as the case may be.