Hi aspirant,

The Reserve Bank of India conducts the grade B examination in two phases namely preliminary and mains. Now the first and most important criteria for being eligible for same as that you must be a graduate with a bachelor's degree. Now coming to the age criteria the applicant's age must be between 21-30 years as of September 1, 2022. Following that you will not be eligible for the examination as you will complete only 20 years by the date of examination as of the DOB you have mentioned. There is upper age relaxation for applicants belonging to reserved categories but it has no relevance to your case.

Hope it helps!!