law: Industries (Development and Regulation) Act, 1951 
  12. Revocation and amendment of licenses in certain cases 
  (1) If the Central Government is satisfied, either on a
  
  reference made to it in this behalf or otherwise, that any person or authority,
  
  to whom or to which a license has been issued under section 11, has, without
  
  reasonable cause, failed to establish or to take effective steps to establish
  
  the new industrial undertaking in respect of which the license has been issued
  
  within the time specified therefor or Within such extended time as the Central
  
  Government may think fit to grant in any case, it may revoke the license.
  (2) Subject to any rules that may be made in this behalf, the
  
  Central Government may also vary or amend any license issued under section 11:
  PROVIDED  that no such power shall be exercised after
  
  effective steps have been taken to establish the new industrial undertaking in
  
  accordance with the license issued in this behalf.
  (3) The provisions of this section shall apply in relation to a
  
  license issued under section 11A or where a license has been amended under that
  
  section, to the amendment thereof, as they apply in relation to a license
  
  issued under section 11.