Section 102A in The Indian Post Office Rules, 1933
102A.
Registered parcels, insured parcels, registered letters, insured letters, registered book packets, registered book packets containing periodicals, registered book packets containing printed books, newspapers prepaid with postage at newspaper rate of postage and with registration fee, express parcels, insured express parcels, may be transmitted by the inland post as electronic value payable postal articles:-Provided that the amount specified for remittance to the sender in the case of any such postal article shall not exceed five thousand rupees and shall not include a fraction of a rupee and that such articles do not contain coupons, tickets certificates or introductions designed for the sale of goods on what is known as the "Snowball System".
