IIM Ahmedabad - Indian Institute of Management Vastrapur Answered Questions

Eligibility-
Candidate must have a Bachelor's Degree, with at least 50% (45% in case of SC/ST/DA category) marks or equivalent CGPA
Must have appeared in CAT/GMAT and obtain qualifying score
Admission Procedure-
Admissions are done on the basis of score in CAT/GMAT and Academic Writing Test followed by personal interview
Only top 50 candidates or top 1% of the applicants will be shortlisted for AWT and PI on the basis of there CAT percentile
https://www.shiksha.com/mba/course/post-graduate-program-management-indian-institute-management-iim-a/1653

There is no direct answer to this question. However, assuming that you want to join established IIMs, there are around 2400-2500 seats for all the IIMs combined. Also assuming that around 2.5 lakh students appear for CAT. You would stand a chance to figure in top 2500 students only if you score more than 99 percentile. This has also been empirically observed. Typical cutoff for IIMA, IIMB and IIMC goes as high as 99.25 percentile to 99.5 percentile. For IIML, IIMI and IIMK, cutoff usually is 98.5 percentile to 99 percentile. Hence I would suggest that you prepare well and give your best shot at CAT.

Yes, in the history of IIM not one student has dropped because of financial reasons. There are sufficient number of scholarships available including special need based scholarship. Also financing is not at all an issue as IIMs make sure that you have access to bank loan with minimum paperwork and minimum interest rates.

Dear Himanshu,
If you manages to score good somewhat around 99% in CAT and considering your past academics you will most probably get call from IIM-AHM.but for admission they will consider other things as well.such as your social activities , social life, skills, communications, etc.
All the very best