Hello dear,
To eligible for applying for banking exam you need to first complete your graduation in any stream...so complete your graduation and you may also prepare yourself well for banking exam during this period of graduation...join any coaching class and self study is good key...
Best of luck....

You shpuld appear for PO exams post your graduation is completed for Bank jobs.

You cn also tak eup BFM and BBA finance, BCOm Finance, BMS which equally provide decent placements in bFSI sector with Bamking company and  NBFCs.

You can then ho for MBA finance for management roles into bamking sector.