The Kerala High Court held that voluntarily filed returns cannot be revised through additional evidence under Rule 29 of the ITAT Rules (Income Tax (Appellate Tribunal) Rules, 1963). Rule 29 of the Income Tax (Appellate Tribunal) Rules, 1963 permits the Tribunal to admit additional evidence for any substantial cause. Justices A. Muhamed Mustaque and Harisankar V. Menon...