(8)Upon declaring the agreement void ab initio,—(a)all the provisions of the Act shall apply to the person as if such agreement had never been entered into; and(b)notwithstanding anything contained in the Act, for the purpose of computing any period of limitation under this Act, the period beginning with the date of such agreement and ending on the date of order under sub-section (7) shall be excluded:Provided that where immediately after the exclusion of the aforesaid period, the period of limitation, referred to in any provision of this Act, is less than sixty days, such remaining period shall be extended to sixty days and the aforesaid period of limitation shall be deemed to be extended accordingly.