Hello dear

Yes you can appear in aiims as the criteria for aiims exam is that candidates from unreserved and OBC category should have an aggregate of 60 %  in 12 th exam whereas it is 50 percent for sc/st and 45 percent for Pwd candidates.

So yes you are eligible for aiims exam.

I hope you got your answer. 

Thankyou 

Feel free to ask your further queries if any.