law: Railways Act, 1989
  135. Supervisors of railway labor.  
  (1) Subject to such rules as may made in this behalf, the
  
  Central Government may appoint supervisors of railway labor.
  (2) The duties of supervisors of railway labor shall be- 
  (i) to inspect railways in order to determine
  
  whether the provisions of this Chapter or of the rules made thereunder are duly
  
  observed; and
  (ii) to perform such other functions as may be
  
  prescribed.
  (3) A supervisor of railway labor shall be deemed to be a
  
  Commissioner for the purposes of sections 7 and 9.