Hi

I'm extremely sorry to tell you dear but you cannot get admission in NIT now.

This is because,

Your JEE mains marks are valid for one year only, for example, if you had qualified JEE mains in 2019 then you were eligible to take admission on the basis of your performance in JEE mains 2019 in the year 2019 itself but not now in 2020.

But yes if you still want to take admission in NIT then you can appear in JEE mains 2021 if you fulfill its eligibility criteria:-

Eligibility criteria says that to be eligible  for JEE mains 2021 for BE or Btech you should be either appearing for 12th board exam or equivalent  in 2021 or should have passed it in 2020 or 2019 with Physics,  mathematics and anyone of Chemistry or Biology or Biotechnology or Technical Vocational Subject.

For detailed information go through

https://engineering.careers360.com/articles/jee-main-eligibility-criteria

So, If are eligible for JEE mains 2021 then you can appear in it and then on the basis of rank obtained by you in JEE mains you can get into NIT , also to be eligible for admission in NIT if you belong to general you should have got at least 75% in your 12th board examination or at least 65% if you belong to Sc or St category in your board examination

Thankyou