To giving the bank exam in India, the candidate must be an Indian citizen. As for the qualifications, most bank exam criteria are to be a Graduate in any discipline from a recognized university or possess any equivalent qualification recognized by the Central Government of India.  Apart from this, there is some mandatory eligibility regarding the age of the candidate who will be applying.
The age limit is 20 to 30 years for different Bank PO Jobs like SBI PO or IBPS PO.
The age limit for the bank clerk exam is 20 to 28 years, which applies to SBI clerks and IBPS clerks. However, IBPS RRB Clerk recruitment is open to 18-year-olds as well.