Through JEE Main you can apply for NITs/IIITs and GFTIs.

In order to be eligible make sure you have 75% marks in your boards exam or you should be in top 20 percentile. For SC/ST it is 65% marks.

You can also apply in DTU and NSIT. Counselling will he hed through JAC Delhi.

To be eligible for DTU and NSIT you should have 60% aggregate marks in P/C/M. There is relaxation of marks for reserved category.

There are many private colleges as well who consider JEE Main exam to provide admission. You have to apply for these exams seperately.

You can check the list of the colleges below

https://engineering.careers360.com/colleges/ranking/top-private-engineering-colleges-in-India-accepting-jee-main-score

Good Luck!!