Hello student as per the eligibility criteria after 12 you need to pursue graduation in your preferable degree. Eligibility criteria says - Candidates must hold a Bachelor degree in any discipline and 21year old minimum.

I request you to please help me with your preferable bank examination you're concerned about so that I can check and provide you the exact information about eligibility criteria as it may vary depending on the designation.

Feel free to comment if you have any doubt

Good luck