Revision notice under GST requires a response and attendance for hearing; failure may lead to ex parte decision. Notice initiating revision proceedings under section 108 states that a prior decision/order is alleged to be erroneous or prejudicial to the interest of revenue and not to have taken into account material facts; the issuing authority intends to pass a revision order on specified grounds attached. The recipient is directed to submit a written reply within seven working days and/or appear for a personal hearing on a specified date; failure to comply will permit the matter to be decided ex parte on available records. The form includes reference fields, officer designation, and signature block.