GST notice intimation by post added to portal service, with dispatch tracking and supervisory compliance requirements. Intimation of Show Cause Notices in FORM GST DRC-01 and Demand Orders in FORM GST DRC-07 issued under the Haryana GST framework is to be additionally sent by registered post or speed post with acknowledgement due for intimation only, after service through the GST common portal. The taxpayer is deemed to have received the notice or order on portal availability under section 169. The proper officer must issue the postal intimation within fifteen days, maintain a dispatch register, and the Deputy Commissioner must supervise and countersign the register monthly.