law: Railways Act, 1989
  28. Delegation of powers. 
  The Central Government may, by notification, direct that any of
  
  its powers or functions under this Chapter, except section 29, or the rules
  
  made thereunder shall, in relation to such matters and subject to such
  
  conditions, if any, as may be specified in the notification, be exercised or
  
  discharged also by a Commissioner.