Hello Surbhi, Based on last year cutoff of general candidates, the closing rank for the unreserved category was 1353(In AIIMS Guntur). If we convert 1353 rank in marks the marks would come somewhere around 560-570. But for being the sake of safety you should target 600.

As per AIIMS MBBS cutoff 2019, candidates belonging to General category will be required to score at least 50% marks in AIIMS MBBS entrance exam, while those belonging to OBC category need to score at least 45% and SC/ST candidates will be required to score at least 40% in order to qualify the exam. 

The merit rank is 53.

Since the scores are not revealed on the results, the cut-offs for AIIMS are given in ranks or percentile only.

Here's a link that'll help you with the cut-offs for all the centres of AIIMS

Https://www.google.com/amp/s/medicine.careers360.com/articles/aiims-mbbs-cut-off/amp