law: Coinage Act, 2011
  24. Power to make
  
  rules.-
  1.  
  
    The
  
  Government may, by notification, make rules to carry out the purposes of this
  
  Act.
  2.  
  
    In
  
  particular, and without prejudice to the generality of the foregoing power,
  
  such rules may provide for all or any of the following matters, namely:
  a.   the use of metal for
  
  the purpose of making any coin under clause (f) of section 2;
  b.   the per cent of
  
  metals for any coin under clause (i) of section 2;
  c.   the standard weight
  
  for any coin under clause (l) of section 2;
  d.   the dimensions,
  
  designs, metals, mixed metals or their composition, for coins under section 4;
  e.   the standard weight
  
  of coins and the remedy allowed in making such coins under section 5.