Hello Aspirant,

Since you have not mentioned your category so considering it as General or Open category.

As we go through the latest cut-offs of JEE-Main 2020 of JOSAA 6th round then it shows that if you are getting 99 percentile or more then you would have some chances for CSE in average NITs and if you want good NITs with CSE branch then you should aim for above 99.5 percentile, similarly for ECE branch in average NITs you should try to maintain your percentile above 97 but for top NITs you should try it above 98.5 percentile. Above data is for Other state quota.

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.

If you are preparing for JEE-Main 2021 or 2022 then 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 or 2022 :-

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

I hope this information helps you.

Good Luck!!