Hello Aspirant,

See there are different cut-offs for different IITs but if you are seeking admission in top IITs like IIT Madras, Bombay with CSE branch, then you should try to secure your SC rank under 100 but on the other hand if you are seeking admission for average IITs then you should set your goal of SC rank under 150-500 and for lower or newer IITs, you should set your aim of at least below 700-750. It is bit difficult to tell you the exact marks to be score in JEE-Advance as the maximum marks are not fixed for JEE-Advance, therefore I have mentioned target ranks for you in JEE-Advance for IITs. Now coming to NITs through JEE-Main so being a SC candidate you should try to maintain your SC rank below 1500-2000 and for such rank marks in JEE-Main are expected to be somewhere in between 95-105 out of 300.

you can check out marks Vs CRL 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 :-

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.

So you can use JEE-Main College Predictor to predict your chances of admission in different engineering colleges of India on the basis of your JEE-Main 2021 result :-

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

If you are preparing for JEE-Main and Advance then to help you in your preparation we have some resources which you can access from the link given below :-

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

I hope this information helps you.

Good Luck!!