law: Securities Contracts (Regulation) Act, 1956
  21.Power to compel
  
  listing of securities by public companies.-
  Notwithstanding
  
  anything contained in any other law for the time being in force, if the Central
  
  Government is of opinion, having regard to the nature of the securities issued
  
  by any public company regard to the nature of the securities issued by any
  
  public company as defined in the Companies Act, 1956 (1 of 1956), or to the
  
  dealings in them, that it is necessary or expedient in the interest of the
  
  trade or in the public interest so to do, it may require the company, after
  
  giving it an opportunity of being heard in the matter, to comply with such
  
  requirements as may be prescribed with respect to the listing of its securities
  
  on any recognised stock exchange.