Hello

If you are asking about admission to MBBS course in AIIMS, entrance examination (AIIMS MBBS) is conducted for selection of candidates.
It would be difficult to tell you the marks required as the cutoff vary every year depending on various factors. You can go through the link below and check the previous year AIIMS MBBS cutoff for reference

https://medicine.careers360.com/articles/aiims-mbbs-cut-off

Good Luck!

• The academic qualifications required to be eligible for AIIMS are listed below:
• Candidates must have passed class 12th examination or equivalent from any recognized board
• Physics, Chemistry, Biology and English must be main subjects in class 12th examination.
• A minimum score of 60% for General Category and Other Backwards Castes and 50% for SC/ST is required.

Let me know if you require any further information.

Good Luck !!