law: Indian Christian Marriage Act,1872 
  78. Corrections of errors
  Every person charged
  
  with the duty of registering any marriage, who discovers any error in the form or
  
  substance of any such entry, may within one month next after the discovery of
  
  such error, in the presence of the persons married, or, in case of their death
  
  or absence, in the presence of two other credible witnesses, correct the error
  
  by entry in the margin, without any alteration of the original entry, and shall
  
  sign the marginal entry, and add thereto the date of such correction, and such
  
  person shall make the like marginal entry in the certificate thereof.
  And every entry made
  
  under this section shall be attested by the witnesses in whose presence it was
  
  made.
  And, in case such
  
  certificate has been already sent to the 22[Registrar General of
  
  Births, Deaths and Marriages], such person shall make and send in like manner a
  
  separate certificate of the original erroneous entry, and of the marginal
  
  correction therein made.