law: Standards of Weights and Measures Act, 1976 
  79. Conversion of
  
  non-metric weights and measures into  standard units of weights or measures. -
  (1) The value
  
  expressed in terms of any unit of weight or measure other than in terms of the
  
  standard units of weight or measure may be converted into the value expressed
  
  in terms of a standard unit of weight or measure at the rate specified in the
  
  Schedule.
  (2) All references in
  
  any enactment or in any notification, rule or order made under any enactment,
  
  or in any contract, deed or other instruments, or the time being in force, to a
  
  value expressed in terms of any unit of weight, measure or numeration other
  
  than that of a standard unit of weight, measure or numeration shall be
  
  construed as references to that value expressed in terms of standard units of
  
  weight, measure or numeration, as the case may be, converted at the rates
  
  specified in the Schedule.