law: Indian Christian Marriage Act,1872 
  17. Issue of certificate of notice
  
  given and declaration made
  Any Minister of
  
  Religion consenting or intending to solemnize any such marriage as aforesaid,
  
  shall, on being required so to do by or on behalf of the person by whom the
  
  notice was given, and upon one of the persons intending marriage making the
  
  declaration hereinafter required, issue under his hand a certificate of such
  
  notice having been given and of such declaration having been made :
  Proviso
  Provided -
  (1) that no such
  
  certificate shall be issued until the expiration of four days after the date of
  
  the receipt of the notice by such Minister;
  (2) that no lawful
  
  impediment be shown to his satisfaction why such certificate should not issue;
  
  and
  (3) that the issue of
  
  such certificate has not been forbidden, in manner hereinafter mentioned, by
  
  any person authorized in that behalf.