Hello,

Your year gap isn't going to be any issue when it comes to appearing for SBI PO,its eligibility is based on graduation in any discipline from a recognized University with no specific aggregate, SBI PO consists of three stages which are prelims,mains and group exercise plus interview.

You may be asked about the year gap in the interview process, try to provide them a reasonable and valid answer, remember if you do well in the prelims,mains,and group exercise it'll definitely increase your confidence and you will be able to convince them of your potential.