The Central Board of Direct Taxes (CBDT) has made it mandatory to furnish information in a new Form 173A to claim income-tax exemption on interest and capital gains from government securities.
The form has been added to the Income-tax Rules, 2026, through the Income-tax (Seventh Amendment) Rules, 2026, notified on October 19 under Notification No. 137/2026. The rules come into force on the date of their publication in the Official Gazette.