hi surya,

you should have atleast 75% marks in your +2 board examination with following subjects physics,maths,chemistry/biology/biotechnology.the marks needed in jee mains will vary with your category and the branch/discipline in which you want to take admission,please refer the following link to get the previous year cut-off's for nits:

• https://engineering.careers360.com/articles/jee-main-cutoff-for-top-nits
• https://engineering.careers360.com/tags/nits-branch-wise-cutoff

all the best!

note:if any links available,copy and paste it in the url bar of your browser.

I Hope this information will be useful to you.

if you need additional information,let us know to help you.

Thank you!!!:)