law: Standards of Weights and Measures Act, 1976 
  10. Base unit of
  
  luminous intensity. - 
  (1) The base
  
  unit of luminous intensity shall be candela.
  (2) The “candela” is
  
  the luminous intensity, in the perpendicular direction of a surface of
  
  1/600,000 square meter of a black body at the temperature of freezing platinum
  
  under a pressure of 101 325 Newton’s per square meter.