Hello Ujjwal. You mentioned you come from GEN-EWS category and that you expect to score 609 out of 720 in NEET UG 2021. Based on your marks, your overall percentile ends up around 98.8 - 99.3 and your AIR may end up somewhere around 15195 - 17345 considering difficulty of the paper to be moderate.

Getting chance to contest a seat at AIIMS is not going to be easy as seats are very limited and the competition is cutthroat. As you belong to General category with EWS sub-category, the cutoff will be a bit high compared to those for rest of the categories. Considering all those factors, if a candidate belongs to General or GEN-EWS category, he/she should fetch a minimum marks of 670 to increase their chances of getting admission at AIIMS.

So, as per your expected score in NEET UG 2021, it is less likely for you to get admission at AIIMS but you have good chances to get admission at any top-rated Government medical colleges in your Home State via 85% State Quota.

To know more about NEET UG overall Cutoff trends, follow this article:

https://medicine.careers360.com/articles/neet-cut-off

Another thing worth mentioning is that you have good chances for Government medical colleges for AYUSH courses like BAMS, B.U.M.S, BHMS etc. in both  AYUSH All India Counselling and State Counselling.

To know your admission chances in medical/dental colleges with NEET Score, to get a personalized report with Top MBBS & B.D.S Colleges and to check course & counselling wise cut-offs of NEET for various state quotas, caste groups etc., I encourage you to use NEET UG 2021 College Predictor:

https://medicine.careers360.com/neet-college-predictor?utm_source=qna&utm_medium=neet_rp

I hope you find this information helpful.

Thank you and all the very best!