When we file our ITR, we take great care to avoid errors. The problem is that many of us file our income tax returns at the last minute, which causes unwanted errors like failure to declare interest income, Incorrect bank account numbers, incorrect deductions, etc. If you did a mistake through the ITR filing then don't worry. The current I-T laws allow you to fix it. Your mistake can be rectified if you discover it after filing your income tax return. A revised income tax return can be filed under section 139(5) of the Income-tax Act, 1961, allowing taxpayers to rectify their mistakes. In this post, we have discussed a complete step-by-step guide to file a revised ITR using Gen I-T software.