law: Arms Act, 1959
  17. Variation, suspension and revocation of
  
  licenses-
  (1) The licensing authority may very the
  
  conditions subject to which a license has been granted except such of them as
  
  have been prescribed and may for that purpose require the license holder by
  
  notice in writing to deliver-up the license to it within such time as may be
  
  specified in the notice.
  (2) The licensing authority may, on the
  
  application of the holder of a license, also vary the conditions of the license
  
  except such of them as have been prescribed.
  (3) The licensing authority may by order in
  
  writing suspend a license for such periods it thinks fit or revoke a license -
  (a) if the licensing
  
  authority is satisfied that the holder of the license is prohibited by this Act
  
  or by any other law for the time being in force, from acquiring, having in his
  
  possession or carrying any arms or ammunition, or is of unsound mind, or is for
  
  any reason unfit for a license under this Act; or
  (b) if the licensing
  
  authority deems it necessary for the security of the public peace or for public
  
  safety to suspend or revoke the license; or
  (c) if the license was
  
  obtained by the suppression of material information or on the basis of wrong
  
  information provided by the holder of the license or any other person on his
  
  behalf at the time of applying for it; or
  (d) if any of the
  
  conditions of the license has been contravened; or
  (e) if the holder of
  
  the license has failed to comply with a notice under sub-section (1) requiring
  
  him to deliver-up the license.
  (4) The licensing authority may also revoke a
  
  license on the application of the holder thereof.
  (5) Where the licensing authority makes an
  
  order varying a license under sub-section (1) or an order suspending or
  
  revoking a license under sub-section (3), it shall record in writing the
  
  reasons therefor and furnish tot he holder of the
  
  license on demand a brief statement of the same unless in any case the
  
  licensing authority is of the opinion that it will not be in the public
  
  interest to furnish such statement.
  (6) The authority to whom the licensing
  
  authority is subordinate may by order in writing suspend for revoke a license
  
  on any ground on which it may be suspended or revoked by the licensing authority;
  
  and the foregoing provisions of this section shall, as far as may be, apply in
  
  relation to the suspension or revocation of a license by such authority.
  (7) A court conviction the holder of a license
  
  of any offence under this Act or the rules made thereunder 
  
  may also suspend or revoke the license :
  Provided that if the conviction is set aside on
  
  appeal or otherwise, the suspension or revocation shall become void.]
  (8) An order of suspension or revocation under
  
  sub-section (7) may also be made by an appellate court or by the High Court
  
  when exercising its powers of revision.
  (9) The Central Government may, by order in
  
  the Official Gazette, suspend or revoke or direct any licensing authority to
  
  suspend or revoke all or any licenses granted under this Act throughout India
  
  or any part thereof.
  (10) On the suspension or revocation of a 
  
  license under this section the holder thereof shall without delay surrender the 
  
  license to the authority by whom it has been suspended or revoked or to such 
  
  other authority as may be specified in this behalf in the order of suspension or 
  
  revocation.