S. 254(2): Appellate Tribunal-Rectification of mistake apparent from the record-Affidavit-Copy of second paper book served on respondents-No denial of averment of assessee in petition that second paper book filed-Tribunal rejecting miscellaneous application without considering second paper book-Order of Tribunal quashed, remanded to Tribunal for consideration of second paper book.[S. 254(1), Art. 226]