law: Indian Post Office Act, 1898 
  27. Power to deal with postal articles from abroad bearing
  
  fictitious or previously used stamps
  (1) Where a postal
  
  article is received by post from any place beyond the limits of 5[ India ]
  (a) bearing a fictitious postage .stamp, that
  
  is to say, any facsimile or imitation or representation of a postage stamps, or
  (b) purporting to be prepaid with any postage
  
  stamp which has been previously used to prepay any other postal article, the
  
  officer in charge of the post office at which the postal article is received,
  
  shall send a notice to the addressee inviting him to attend, either in person
  
  or by agent, within a specified time at the post office to receive delivery of
  
  the postal article.
  (2) If the addressee
  
  or his agent attends at the post office within the time specified in the notice
  
  and consents to make known to the officer in charge of the post office the name
  
  and address of the sender of the postal article and to redeliver to the officer
  
  aforesaid the portion of the postal article which bears the address and the
  
  fictitious or previously used postage stamp, or, if the postal article is
  
  inseparable from the stamp, the entire postal article, the postal article shall
  
  be delivered to the addressee or his agent.
  (3) If the addressee
  
  or his agent fails to attend at the post office within the time specified in
  
  the notice, or, having attended within that time, refuses to make known the
  
  name and address of the sender or to redeliver postal article or portion thereof
  
  as required by sub-section (2), the postal article shall not be delivered to
  
  him, but shall be disposed of in such manner as the Central Government may
  
  direct.
  Explanation.- For the purposes of
  
  this section, the expression "postage stamp" includes any postage
  
  stamp for denoting any rate or duty of postage of any part of 28[India
  
  or of His Majesty's dominions] or foreign country 14[and the
  
  impression of any stamping machine provided or authorized for the like purpose
  
  by or under the authority of the Government of such 29[part or
  
  country].