Hello Aspirant,

Some top NITs are like NIT Trichy, NIT Warangal, NIT Allahabad and likewise, so answer will be in regards to such NITs.

It is quite difficult to predict the exact percentile or marks required in JEE-Main 2021 for any particular branch or colleges because it keeps on changing every year depending upon various factors.

But as we go through the latest cut-offs of 2020 then it shows that the closing ST rank was around 400 for Civil branch in NIT Trichy and around 625-650 in NIT Warangal and NIT Allahabad under Other state quota for ST category .

Now to secure such rank you should have your JEE-Main score at least 150-170 marks out of 300 and percentile against this is expected to be 99 or above.

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 :-

You can check out the latest cut-offs from the link given below :-

https://josaa.nic.in/Result/Result/currentorcr.aspx

Note that the above prediction is made on the basis of latest cut-offs available on official website of JOSAA or CSAB 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

As you are preparing for JEE-Main 2021 the I would recommend you to check the resources made by our experts to help aspirants like you in the best and smart preparation of JEE-Main 2021 :-

https://learn.careers360.com/jee-main-coaching/?utm_source=%20QnA

I hope this information helps you.

Good Luck!!