I am 65 years old. My income for fiscal year 2021-22 was ₹7.49 lakh including pension amount ₹5.32 lakh and interest income of ₹2.17 million. According to my calculation, ₹3 lakh will be the basic exemption, ₹50,000 will be a standard deduction, ₹1.5 lakh 80C deduction for PPF, ₹50,000 under 80TTB and ₹50,000 for health insurance. Subtracting all exemptions and deductions should bring my net taxable income to ₹1.49 lakh, so I don’t have to pay income tax. However, according to my tax return, the total income is ₹4.49 million. Total income adjusted for alternative minimum tax, if any, is ₹4.49 million. I am unable to understand this.