Hey Sandeep,
See you didn't mention which AIIMS you're talking about but since your profile suggests that you're an MBBS aspirant from Rajasthan.
So I'm assuming you're asking about All India Institute of Medical Sciences, Jodhpur. For securing an MBBS seat at AIIMS Jodhpur you must obtain a rank under 13 00 (SC Category).
And for AIIMS Delhi you must obtain a rank around 1198-87.
FOr more information regarding NEET-UG cutoff in your region do visit- https://medicine.careers360.com/articles/neet-cutoff-rajasthan For predicting colleges based on your rank you can use this college predictor tool- https://medicine.careers360.com/neet-college-predictor?icn=c360-medical-neet-cp&ici=clevertap-sticky-articles-web
Hope this helps.
Goodluck!
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile