Hi,
Income Tax Deductions
Income tax deductions are based on:
1) Total taxable earnings for the financial year
2) IT regime you had opted for - old or new
3) Investments you had made under various sections like 80C, 80D, etc. (No. 3 applicable only if you had opted for the old regime)
The normal process followed by companies is that they will first calculate the projected earnings for the whole financial year and then check the projected investment declaration. After that, they will arrive at the monthly income tax to be deducted in EMIs. In case of any loss of pay in the middle of months, there will be some variation in the monthly deduction amount. This is the standard process.
However, some companies follow year-end IT deductions for the last 3-4 months.
So, it all depends on your income tax slab, investments made, deduction method followed, etc.