Hi Aspirant,

After class 12th you can complete your graduation and after that you can give competitive examination for Banking like

• Institute of Banking Personnel Selection Bank PO Exam (IBPS PO)
• Institute of Banking Personnel Selection Clerk Exam (IBPS Clerk)
• State Bank of India PO Exam (SBI PO)
• State Bank of India Clerk Exam (SBI Clerk)
• State Bank of India Specialist Officer Exam (SBI SO)

Hope it helps!!