law: Indian Post Office Act, 1898 
  73. Zamindari and other district posts 
  (1) The Central
  
  Government may make rules for the management of any zamindari or other district
  
  post.
  (2) In particular and
  
  without prejudice to the generality of the foregoing power, such rules may
  
  declare what portions of this Act shall be applicable to zamindari and other
  
  district posts and to the persons employed in connection therewith.