Powers of Mayor and Deputy Mayor and President whose term of office stands extended and validation of certain acts.

All the Mayors and Deputy Mayors and Presidents, whose term of office is deemed to have been extended or is extended, as the case may be, under section 3, shall, throughout such extended period, be deemed to have been and be competent to exercise all the powers, perform all the duties and discharge all the functions as such Mayor and Deputy Mayor or, as the case may be, President; and no act done by any of them during the said period shall be invalid, or shall be called in question in any Court, merely on the ground that during the extended period such Mayor and Deputy Mayor or, as the case may be, President 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 Mayor and Deputy Mayor or, as the case may be, the President under the relevant Acts.