Section 10 in The Standards Of Weights And Measures Act, 1976
10. Base unit of luminous intensity
(1)The base unit of luminous intensity shall be the candela.(2)The candela is the luminous intensity, in the perpendicular direction, of a surface of 1/600,000 square metre of a black body at the temperature of freezing platinum under a pressure of 101 325 newtons per square metre.
