4Exclusive privilege in respect of postage stamps.

(1) The Post Office shall have the exclusive privilege of issuing postage stamps.
(2) The Director General may make regulations relating to the supply and sale of postage stamps and postal stationery.
(3) In this section, the expressions—
(a) “postage stamp” means any stamp provided by the Central Government, in any form, physical or digital, for denoting sums payable in respect of such service provided by the Post Office, as may be prescribed and includes stamps affixed, printed, embossed, embedded, impressed, or otherwise indicated on an item;
(b) “postal stationery” means stationery, issued by the Post Office such as envelopes, letter cards, postcards, bearing imprinted stamps or inscriptions indicating that sum payable in respect of a service provided by the Post Office has been prepaid.