law: Land Acquisition Act, 1894
  45.Service of
  
  notices:- 
  (1) Service, of any
  
  notice under this Act shall be made by delivering or tendering a copy thereof
  
  signed, in the case of a notice under section 4, by the officer therein
  
  mentioned, and, in the case of any other notice, by or by order of the
  
  Collector or the Judge.
  (2) Whenever it may be
  
  practicable, the service of the notice shall be made on the person therein
  
  named.
  (3) When such person
  
  cannot be found, the service may be made on any adult male member of his family
  
  residing with him; and, if no such adult male member can be found, the notice
  
  may be served by fixing the copy on the outer door of the house in which the
  
  person therein named ordinarily dwells or carries on business, or by fixing a
  
  copy thereof in some conspicuous place in the office of the officer aforesaid
  
  or of the Collector or in the Court-house, and also in some conspicuous part of
  
  the land to be acquired:
  Provided that, if the Collector or Judge shall so direct, a notice may be sent by
  
  post, in a letter addressed to the person named therein at his last known
  
  residence, address or place of business and registered under Part III of the
  
  {See now the Indian Post Office Act, 1898 (6 of 1898).} Indian Post Office Act,
  
  1866, and service of it may be proved by the production of the addressee's receipt.