law: Railways Act, 1989
  22. Formalities to be complied with before giving sanction
  
  to the opening of a railway. 
  (1) The Central Government shall, before giving its sanction to
  
  the opening of a railway under section 21, obtain a report from the
  
  Commissioner that- 
  (a) he has made a careful inspection of the
  
  railway and the rolling stock that may be used thereon;
  (b) the moving and fixed dimensions as laid down
  
  by the Central Government have not been infringed;
  (c) the structure of lines of rails, strength
  
  of bridges, general structural character of the works and the size of, and
  
  maximum gross load upon, the axles of any rolling stock, comply with the requirements
  
  laid down by the Central Government; and
  (d) in his opinion, the railway can be opened
  
  for the public carriage of passengers without any danger to the public using
  
  it.
  (2) If the commissioner is of the opinion that the railway
  
  cannot be opened without any danger to the public using it, he shall, in his
  
  report, state the grounds therefor, as also the requirements which, in his
  
  opinion, are to be complied with before sanction is given by the Central
  
  Government.
  (3) The Central Government, after considering the report of the
  
  Commissioner, may sanction the opening of a railway under section 21 as such or
  
  subject to such conditions as may be considered necessary 'by it for the safety
  
  of the public.