law: Railways Act, 1989
  18. Fences, gates and bars. 
  The Central Government may, within such time as may be specified
  
  by it or within such further time, as it may grant, require that- 
  (a) boundary marks or fences be provided or renewed by a railway
  
  administration for a railway or any part thereof and for roads constructed in
  
  connection therewith;
  (b) suitable gates, chains, bars, stiles or hand-rails be
  
  erected or renewed by a railway administration at level crossings;
  (c) persons be employed by a railway administration to open and
  
  shut gates, chains or bars.