Indian Post Office Act, 1898
19A. Transmission by post of tickets, proposals, etc., relating to unauthorized lotteries prohibited
No person shall send by post-
(a) any ticket, proposal or advertisement relating to a lottery; or
(b) any other matter descriptive of, or otherwise relating to, a lottery, which is calculated to act as an inducement to persons to participate in that lottery.
Explanation.- In this section, "lottery" does not include a lottery organized or authorized by the Government.]