Hii..

As you mention your percentile and your category with  these percentage and category... sorry to say that you are not eligible for AIIMS exam as the percentile required for the OBC category for Aiims exam is 60 percentage and as your peexpercen as  54.2 percentage ..

So according to eligibility criteria for the AIIMS exam you are not eligible for the same for more information go through this link:

https://medicine.careers360.com/articles/aiims-mbbs-eligibility-criteria

All the best!!