law: Special Marriage Act, 1954 
  48. Transmission of copies of entries
  
  in marriage records.
  Every Marriage Officer
  
  in a State shall send to Registrar-General of Births, Deaths and Marriages of
  
  that State at such intervals and in such form as may be prescribed, a true copy
  
  of all entries made by him in the marriage Certificate Book since the last of
  
  such intervals, and, in the case of Marriage Officers outside the territories
  
  to which this Act extends, the true copy shall be sent to such authority as the
  
  Central Government may specify in this behalf.