hi rittika,

first of all, there are two types of jobs :

1.clerical jobs 

2.officer job(PO)

for both of them, any graduate with 60%marks is eligible.

for Public sector banks, you have appear in recruitment exams like IBPS-PO, IBPS-clerk, etc 

for the private bank, you can apply directly and there will be a normal test and interview process.

hope this will help

all the best!!!!!!!!