The Post Office Act, 2023
9. Power to intercept, open or detain any item or deliver item to customs authority.-
(1) The Central Government may, by notification, empower any officer to cause any item in course of transmission by the Post Office to be intercepted, opened or detained in the interest of the security of the State, friendly relations with foreign states, public order, emergency, or public safety or upon the occurrence of any contravention of any of the provisions of this Act or any other law for the time being in force.
(2) The Central Government may cause any item referred to in sub-section (1) to be disposed of in such manner as it deems appropriate.
(3) The Central Government may, by notification, empower any officer of the Post Office to deliver an item, received from within or beyond the limits of India and reckoned to contain anything liable to duty or which is suspected to contain any prohibited item to such customs authority or any other authority as may be specified in the said notification, and such customs authority or any other authority shall deal with such item in accordance with the provisions of any law for the time being in force.