49. The Commissioner, or any officer not inferior in rank to that of a Joint Deputy Commissioner of a district empowered in this behalf by the Commissioner, or a Settlement Officer so empowered, may, on application, direct the revision of any Compensation Assessment-roll or any portion of such roll and any record-of-rights or any portion of record-of-rights on the basis of which such roll has been prepared, at any time during the preparation of such roll and may direct such revision on an application made within three months from the date of final publication of such roll and may also, of his own motion, direct such revision at any time before payment of compensation, but so as not to affect any order passed by the superior Revenue Authority under section 41 or by the Special Judge under section 51 or under sub-section (4) of section 52 or under section 53: Provided that no such direction shall be issued unless not less than fifteen days' notice has been given to the parties concerned to appear and be heard in the matter.