IIMs are one of the most sought-after B-Schools by MBA aspirants in the country and thus its admission criteria are equally challenging. This ensures only the best make it into the Institute and maintains the standard of education.
It would be an understatement to say that passing IIM is tough as it is more than just tough. The competition is at another level and you will find many 98+ percentilers fighting for the seats. You might not get a call unless you are one of the top scorers in your particular field.
For those with a low academic profile, can always target other B Schools or IIMs like IIM Kolkata, IIM Lucknow, or IIM Indore instead of being fixated on IIM Ahmedabad and Bangalore.
Admission to IIM Ahmedabad, the best IIM, is extremely difficult. It calls only the top 50 scorers from each academic discipline irrespective of their academic record. Basically, anything below 99.96 percentile will not fetch them a call while for non-engineers, a 99.7+ percentile might fetch them a call. Some options to consider apart from IIM Ahmedabad are
Candidates with a low academic profile can opt out of these top IIMs or even consider other B schools.