The Legal Metrology Act, 2009

5. Base unit of weights and measures. -

1.  The base unit of -

  i.   length shall be the metre;

mass shall be the kilogram;

  iii.   time shall be the second;

  iv.   electric current shall be the ampere;

  v.   thermodynamic temperature shall be the kelvin;

  vi.   luminous intensity shall be the candela; and

  vii.   amount of substance shall be the mole.

1.  

2.  The specifications of the base units mentioned in sub-section (1), derived units and other units shall be such as may be prescribed.