Rectification applications must state the apparent mistake and follow appeal procedures, with hearing and reasoned written orders. Applications under section 254(2) must concisely state the mistake apparent from the record. The appeal filing procedure applies mutatis mutandis; applicants must disclose prior miscellaneous applications against the same order and file copies of orders on such applications. The Bench that heard the original matter will ordinarily dispose of the application after affording both parties a reasonable opportunity to be heard, and must record a written, reasoned order.