law: Coinage Act, 2011
  7. Decimal system of
  
  coinage.-
  1.  
  
    The
  
  rupee shall be divided into one hundred units and any such unit may be
  
  designated by the Government, by notification, under such name as it thinks
  
  fit.
  2.  
  
    All
  
  references in any enactment or in any notification, rule or order under any
  
  enactment or in any contract, deed or other instrument to any value expressed
  
  in annas, paisa and pies shall be construed as references to that value
  
  expressed in units referred to in sub-section (1) converted thereto at the rate
  
  of sixteen anna, sixty-four paise or one hundred and ninety-two pies to one
  
  hundred units referred to in sub-section (1).
  3.  
  
    All
  
  references in any enactment or in any notification, rule or order under any enactment
  
  or in any contract, deed or other instrument to any value in naya paisa or naye
  
  paise shall be construed as references to that value expressed respectively in
  
  units referred to in sub-section (1).