law: Public Provident Fund Act, 1968
  3. Public Provident Fund Scheme
  (1) The Central Government may, by notification in the Official
  
  Gazette, frame a scheme to be called the Public Provident Fund Scheme for the
  
  establishment of a provident fund for the general public and there shall be
  
  established, as soon as may be after the framing of the Scheme, a Fund in
  
  accordance with the provisions of this Act and the Scheme.
  (2) Subject to the provisions of this Act, the Scheme may provide
  
  for all or any of the matters specified in the Schedule.
  (3) The Scheme shall have effect notwithstanding anything
  
  contained in any law for the time being in force other than this Act or in any
  
  instrument having effect by virtue of any law other than this Act.
  (4) The Central Government may, from time to time, by
  
  notification in the Official Gazette, add to, amend or vary the Scheme.