Deductor TAN mismatch in Form 26as and ITR filed

A tax demand has been raised due to a mismatch in the deductor's TAN between Form 26AS and the filed Income Tax Return (ITR). Although Form 16 shows the correct deduction, the differing TANs have caused the issue. If the TAN in Form 16 and Form 26AS are identical but differ in the ITR, a revised return should be filed. As the revised return deadline has passed, a rectification return is the recommended solution.