Hello Milan, 

AIIMS MBBS aspirants can check which AIIMS Institute they may get on the basis of their AIIMS MBBS 2018 rank through AIIMS MBBS 2018 college predictor.

To use AIIMS college predictor you can refer to this website -

https://medicine.careers360.com/aiims-mbbs-college-predictor

You can also go through the previous years cut off of AIIMS using this website - 

https://www.google.co.in/amp/s/medicine.careers360.com/articles/aiims-mbbs-cut-off%3famp

Good luck !!