Save as otherwise provided in this Act, no person shall, after the commencement of this Act, commence or carry on the business of export of any spice except under and in accordance with a certificate:
     Provided that a person carrying on the business of export of spices immediately before the commencement of this Act, may continue to do so for a period of three months from such commencement; and if he has made an application for such certificate within the said period of three months till the disposal of such application.
     Explanation.--The reference in this section to the commencement of this Act shall be construed in relation to any spice added to the Schedule by notification under the proviso to clause (n) of section 2 as reference to the date with effect from which such spice is added to the Schedule.