Hello,

It is difficult to predict the exact marks as the cut off changes every year depending on number of candidates qualified, difficulty of exam and number of seats available etc.

To check the cut off for NITs click the link below

https://engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches

Considering the past years cut off trends you need to score minimum 120-150 marks or more in JEE Main 2021. To score such marks you need to first know the syllabus. To check the syllabus use the link below

https://engineering.careers360.com/articles/jee-main-syllabus

If you are self-preparing, make a time table and follow it. Write the notes and short notes and use them when you are revising. Practice the numerical, this will help you to understand how to solve a question and what sort of questions will be asked. Solve the previous year question papers and attempt mock tests to improve the accuracy and speed. Rectify the mistakes that you do when you solve the questions, you may take the help of your teachers and friends to clear the doubts you have. They key is to be consistent and analyzing your performance.

We have JEE Main knockout package to help you with your preparation. To check the details and enroll

https://learn.careers360.com/knockout-jee-main-april/