law: 18. Power to close metro railway opened for public carriage of passengers.
  Where, after the inspection of the metro railway opened and used for the public carriage of passengers or any rolling stock used thereon, the Commissioner is of the opinion that the use of the metro railway or of any rolling stock will be attended with danger to the public using it, the Commissioner shall send a report to the Central Government who may thereupon direct that
  (i) the metro railway be closed for the public carriage of passengers; or (ii) the use of the rolling stock be discontinued; or
  (iii) the metro railway or the rolling stock may be used for the public carriage of passengers subject to such conditions as it may consider necessary for the safety of the public.