Hello,

You are not eligible for SBI clerk examination. Your age will be between 20 years to 28 years. Not less than 20 and not more than 28 years. You should born in not earlier than April 2, 1993 not later on April 1, 2021. So  your age 20 years is not complete in April 1, 2021 because you are 20 years in 16th April 2021. So you are not eligible in this year for giving the examination. You can eligible for next time.

All the best.