Hi Dear,
If you have interest in banking sector, there are many post for which you can apply. However, to be a bank manager you can go for either MBA from a good institute and join a private bank in which you will need a minimum of 50 percentage in 12th class. And if you go through PO exams then you'll need a minimum of 60% in your class 12th exam.
Hope this helps.. Good Luck
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