I received Rs. 50,000 as dividend during FY 2021-22. In one instance, a tax of Rs. 600 was deducted. That said, my income, including dividend, is less than Rs. 2.5 lakh. Do I still need to file my income tax return? How do I avoid deduction of tax at source (TDS) on dividend in future as I am unlikely to have any tax liability in future also?