Many readers ask this questions many times in comments, forums and on my mail. So I decided to answer this query now.
Why you appeared for Clerk exam if you are overqualified
I have seen many engineers, MBAs and many other overqualified aspirants who appeared for IBPS Clerk this year. If you one of these candidates then you are in a "Wild Goose Chase". Banks would be really happy to have an MBA working as a Clerk in their branches. You will get the job easily, but after getting the job you will realize that you deserve more than this. You were feeling weird when interview panel was asking you weird questions, don't worry they are not going to reject you at any cost. After all they are going to get over-qualified clerks.
Bond Requirement
All though there is no financial bond in Clerk level job but there is probation of 6 months. Further you won't be eligible to appear for any PSU interview until you have a No Objection Certificate from the bank you are working. You have to submit a 3 months notice. After getting you will be eligible to appear for PSU interviews. As many of you know that many candidates in IBPS PO were allowed to appear for interviews because they didn't have NOC with them.
NOC makes you eligible to appear for other PSU interviews. All of you know that nothing is predictable in case of public sector jobs. 57000 candidates qualified for 19000 jobs in IBPS PO, nobody can predict your chances. So after getting an NOC, you will get a chance to appear for interview.
Conclusion
All of those engineers, MBA's and over-qualified, I request you in your own favor to give best start to your career. If you are fed up of private sector jobs, then getting a Clerk job is not the solution. At least prepare for IBPS PO or SO and give a respectable start to your career. Just imagine, normally branch managers of PSU banks are graduates. Further salary in hand is just Rs 15,000 to 17,000. It is very difficult to survive this small salary. It's better to prepare for 3-4 months and then give your best at PO exams. I promise that if anyone prepare for 3 months, he/she will get interview call for PO/SO.
Best of Luck