law: Indian Christian Marriage Act,1872 
  18. Declaration before issue of
  
  certificate
  The certificate mentioned
  
  in section 17 shall not be issued until one of the persons intending marriage
  
  has appeared personally before the Minister and made a solemn declaration-
  (a) that he or she
  
  believes that there is not any impediment of kindred or affinity, or other lawful
  
  hindrance, to the said marriage,
  and when either or
  
  both of the parties is or are a minor or minors.
  (b) that the consent
  
  or consents required by law has or have been obtained thereto, or that there is
  
  no person resident in India having authority to give such consent, as the case
  
  may be.