law: Emigration Act, 1983
  13. Renewal of registration.-
  A certificate may be renewed from time to time
  
  and the provisions of this Act and the rules made thereunder (including
  
  provisions as to fees) shall apply to the renewal of a certificate as they
  
  apply to the issue thereof.
  Provided that no certificate shall be renewed
  
  unless the application for its renewal is made not less than three months prior
  
  to the date on which the certificate, would, but for such renewal, cease to be
  
  valid :
  Provided further that the registering authority
  
  may entertain an application for the renewal of a certificate which has been
  
  made at any time during the period of three months prior to the date on which
  
  the certificate would, but for so such renewal, cease to be valid if the
  
  applicant satisfies the registering authority that he had sufficient cause for
  
  not making such application before the said period.