Mr. X’s action of depositing Rs. 65,000 in a 5-year term deposit with the Post Office to avail tax deductions under Section 80C is a legitimate and lawful way to reduce his tax liability. Tax evasion involves illegal activities to avoid paying taxes, such as not reporting income or filing false returns. Tax avoidance refers to legal methods of reducing one’s tax liability. Mr. X is utilizing a legal provision to reduce his tax burden, which is not considered tax evasion or avoidance.