Save as otherwise provided in this Act, no recruiting agent shall, after the commencement of this Act, commence or carry on the business of recruitment except under and in accordance with a certificate issued in that behalf by the registering authority:
     Provided that a person carrying on the business of recruiting agent immediately before the commencement of this Act may continue to carry on such business without such a certificate for a period of one month from such commencement, and if he has made an application for such certificate under this Act within the said period of one month and such application is in the prescribed form and contains the prescribed particulars, till the disposal of such application by the registering authority.