How the "Special Economic Zone Authority" is constituted under Special Economic Zone Act, 2005? Which are the defects or irregularities for which any act or proceedings of an authority can not be invalidated?

Section 31 of Special Economic Zone Act, 2005 empowers the Central Government to constitute by notification in the Official Gazette, Special Economic Zone Authority' for every Special Economic Zone to exercise powers conferred on and discharge the functions assigned to it. Section 31(9) of Special Economic Zone Act, 2005 stipulates that no act or proceedings of an authority shall be invalidated merely by reason of: any vacancy in or any defect; any defect in the appointment of a person as its member; or any irregularity in the procedure of the authority not affecting the merits of the case.