IIM Ahmedabad - Indian Institute of Management

You can always take educational loan. Since after placements from IIM's your financial condition will be good, you will always manage to pay your loan without any issue.

It depends on what you learn during your work experience and how you are able to convince the interview panel during your interview. Hence, worrying about it now would be counterproductive. Hope I have answered your question. All the best!!

Yes, you can apply for CAT 2017 while working in a bank. Coming to points for work experience, individual IIM's have their rating criteria to rate quality and quantity of your work experience. As a thumb rule, people with work experience between 2-3 year get the highest points and points awarded anything more or less than that reduces linearly. A work experience of 6 months or so will not have any significant effect on your composite score but might sway the interview towards work experience rather than academics.

It is always better to do a productive work rather than sitting idle. Hence it is advised to take up the clerical job and leave it later to continue with your MBA education when the time arrives.

Cut-off marks for 10th, 12th & graduation is around 50% for admission into IIM A. Having said that, clearing the cut-off score doesn't guarantee an interview call from IIM A. Refer the selection criteria of IIM A to get more clarity in the matter:
https://web.iima.ac.in/programmes/admission-details/admission-procedure-for-pgp-2017-19-batch.html

Assuming you clear the minimum cut-off to be considered for evaluation, then yes. But, pragmatically saying, with sub-par academics, it is really difficult to get admission to IIM A at any percentile.

Admission to IIMs is via a common entrance examination called CAT. After clearing the entrance examination, based on your score, past academics and relevant work experience IIMs shortlist students for written ability test & PI where they will gauge your interest for pursuing MBA. After clearing the same, one gets admission to any of the IIMs.

Work experience is not a necessary requirement to get admission into IIM A. Considerable percentage of people of current batch are freshers.