law: Indian Christian Marriage Act,1872 
  42. Oath before issue of certificate
  The certificate
  
  mentioned in section 41 shall not be issued by any Marriage Registrar, until
  
  one of the parties intending marriage appears personally before such Marriage
  
  Registrar, and make oath25
  (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
  (b) that both the
  
  parties have, or (where they have dwelt in the districts of different Marriage
  
  Registrars) that the party making such oath has, had their, his or her usual
  
  place of abode within the district of such Marriage Registrar,
  and, where either or
  
  each of the parties is a minor,
  (c) that the consent
  
  or consents to such marriage required by law has or have been obtained thereto,
  
  or that there is no person resident in India authorized to give such consent,
  
  as the case may be.