Hello,

During the counselling procedure the candidates are required to fill their choices  of colleges. The seats will be filled by he various categories of candidates which will include the :-

• Unreserved Category
• SC/ST Category
• OBC Category

Candidates belonging to the above categories, will be called for counselling on the basis of merit. The last step is reporting to the allotted college. This is just an overview, for the detailed information click the link below and check out the article -

https://medicine.careers360.com/articles/aiims-mbbs-counselling

Hope this helps!

Thank you.