law: Indian Christian Marriage Act,1872 
  61. Grant of certificate
  When, in respect to
  
  any marriage solemnized under this Part, the conditions prescribed in section
  
  60 have been fulfilled, the person licensed as aforesaid, in whose presence the
  
  said declaration has been made, shall, on the application of either of the
  
  parties to such marriage, and, on the payment of a fee of four annas, grant a
  
  certificate of the marriage.
  The certificate shall
  
  be signed by such licensed persona; and shall be received in any suit touching
  
  the validity of such marriage as conclusive proof of its having been performed.