I got 150 marks in jee main paper 2
You have good chances of getting decent seat in NIT.
Good luck.
You can click on following link to predict your college.
JEE paper 2 college predictor
Dear Gagandeep,
In order to get admission in NITs you should have more then 230 marks in your JEE Main paper 2.
To check your expected rank based on your marks you can use below rank predictor
https://engineering.careers360.com/jee-main-architecture-rank-predictor
Good Luck!!