law: Coinage Act, 2011
  15. Prohibition and
  
  penalty for bringing metal piece for use as coin.-
  1.  
  
    No
  
  person shall bring by sea or by land or by air into India of any piece of metal
  
  to be used as coin except with the authority or permission of the Government.
  2.  
  
    Whoever
  
  contravenes the provisions of sub-section (1) shall be punishable with
  
  imprisonment which may extend to seven years and with fine.