Act of Market Committee etc. not to be invalidated

No act of Market Committee or of any sub-committee thereof or of any person acting as a Member, Chairman, presiding authority or the Secretary shall be deemed to be invalid by reason only of some defect in the constitution or appointment of such Market Committee, sub-committee, Members, Chairman, presiding authority or the Secretary or on the ground that they or any of them were disqualified for such office, or that formal notice of the intention to hold a meeting of the committee or of the sub-committee was not given duly or by reason of such Act having been done during the period of any vacancy in the office of the Chairman or the Secretary or Member of such committee or sub-committee or for any other informality not affecting the merits of the case.