Greeting of the day!

Here is what Marks vs Percentile in your score range say of last year(2020).

Marks Range                      Percentile range

41 - 50                        73.2878087751462 - 80.9821538087469

To check the full list you can go through the link below.

https://engineering.careers360.com/articles/jee-main-marks-vs-percentile

Now on the above analysis we can say that your percentile on 91 marks will be somewhere between 73.66 - 76.06.

And on this percentile if we try to find out your expected rank then it will be somewhere between 255750 - 287500.

Having said that please note that you can observe some difference in actual percentile or rank and this score as i am doing analysis based on previous year stuffs so it can vary slightly as you know.

To check your expected rank yourself, you can go through our rank predictor too. Below I am pasting the link for it.

To have the list of the colleges that you can get on your rank range, you can go through our college predictor tool.

For that I am giving you the link below.

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

All the very best!!