Compromise application under section 270AA: declaration of no appeal and undertaking not to file appeal. A compromise application (Form No. 68) requires taxpayer personal and identifier details, assessment/reassessment particulars including assessed income, tax and interest payable, due date, and payment/challan entries. The applicant must sign a verification declaring the truth of the information, confirming capacity to apply, stating that no appeal has been filed against the specified order, and undertaking not to file an appeal before the expiry of the statutory period for compromise applications.