(5)If any appeal filed by the Assessing Officer or the Principal Commissioner or Commissioner is pending before the Appellate Tribunal or the High Court for a rollback year, on the issue which is subject matter of the rollback provision for that year, the said appeal to the extent of the subject covered under the agreement shall be withdrawn by the Assessing Officer or the Principal Commissioner or the Commissioner, as the case may be, within three months of filing of modified return by the applicant.