To calculate age from date of birth in India, you can: 

1. Find the difference between the current year and the year of birth
2. If the person’s birth month is yet to occur in the current year, subtract one from the calculated year difference
3. If the birth month has already passed, compare the current month with the birth month

You can also calculate your age by counting the number of years, months, and days completed since birth. This method factors in leap years and months with 31 days. 

To calculate age from date of birth in India, you can: 

Calculate age from date of birth in Excel