Income-tax rules amended: ITR-1 and ITR-4 replaced; Form 10BA must be furnished with the income tax return. Amendments to the Income tax Rules, 1962 effective 1 April 2025 revise Rule 12 to expand and clarify eligibility for the simplified SUGAM (ITR 4) return-permitting certain assessees with presumptive business/professional income and only limited long term capital gains subject to specified loss conditions-and update a sub rule date. Rule 11B is amended to require furnishing Form 10BA with the return. Appendix II substitutes new ITR 1 and ITR 4 forms reflecting the revised eligibility and reporting requirements.