Hello,

Exams like CAT, SNAP, CMAT, ATMA strongly emphasize on having 50% at graduation level for General Candidates, so you may not be able to apply for these.

However, XAT doesn't require any such specific aggregate at graduation level.

In the case of MAT, the minimum aggregate differs among university, so you can check if there are universities which take admission on the basis on MAT scores, along with its own eligibility criteria which if you fulfill, you can go ahead.

But, you have to do extremely well  in these exams not just  earning a very high percentile but in further processes as well that are conducted during admission procedure.