Dear aspirant,

As you have mentioned you have secured 90 marks in jee advanced 2021 so let me tell your rank would be above 10k so in this rank you can expect lower IITs like patna,bhilai,mandi and other parallel ones.

Generally if you were to take my opinion I won't go for IITs if I get rank of 10k plus. Infact I think upto 5-6k should go for IITs.

For more information you can check out the link given below-

https://engineering.careers360.com/jee-advanced-college-predictor?icn=QnA&ici=qna_answer