law: Coinage Act, 2011
  28. Continuance of
  
  existing coins.-
  Notwithstanding the
  
  repeal of the enactments and the Ordinance specified in sub-section (1) of
  
  section 27,
  a.  
  
    all
  
  coins issued under the said enactments; and
  b.  
  
    Government
  
  of India one rupee note issued under the Currency Ordinance, 1940 (Ord. IV of
  
  1940),which are legal tender immediately before the commencement of the Coinage
  
  Act, 2011 shall be deemed to be the coin and continue to be legal tender in
  
  payment or on account under the corresponding provisions of this Act.