Hello Aspirant,
See If we go through the analysis of marks Vs Percentile Vs rank for JEE-Main 2021 then according to the percentile mentioned by you in the question your rank is expected to be in the range of 50000-60000 .
As we go through the latest cut-offs of 2021 then it shows that if the candidate belongs to UP(General) then he/she should have around 20000-25000 CRL rank in JEE-Main 2022 for CSE in IET Lucknow and around 30000-40000 for CSE in MMMUT Gorakhpur.
"Now to secure such rank you should have your JEE-Main percentile somewhere around 98+. "
You can check out marks Vs ranks Vs Percentile from the link given below :-
https://engineering.careers360.com/articles/jee-main-marks-vs-percentile
Or
You can also use JEE-Main Rank Predictor to predict your rank :-
JEE Main Rank Predictor - Know your expected IIT JEE Main 2021 Rank by ...
Note that the above prediction is made on the basis of latest cut-offs available and the cut-offs are bound to change every year depending upon various factors such as the number of candidates appearing in an examination, the number of candidates qualifying an examination, difficulty level of the paper, and so on.
To have a list of all those colleges which you can get based upon your score, category, and state you can use JEE-Main College Predictor :-
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer
You can also take JEE-Main Learning package for solving series of mock tests :-
https://learn.careers360.com/knockout-jee-main-april-one-month-subscription/?icn=jee-main-knockout&ici=c360-clevertap-sticky-articles-web
I hope this information helps you.
Good Luck!!
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