Hello Aspirant,

See only on the basis of your class 12th marks we cannot predict any engineering college for you because you are seeking admission through JEE-Main score and for admission to NITs/IIITs/CFTIs through JEE-Main you only have to pass in all the subjects in class 12th and this criteria is only for this academic year due to the pandemic. So if you want any good college like NITs/IIITs through JEE-Main then with General category, you should score at least 95+ percentile in JEE-Main and for reserved categories you should secure around 92+ percentile.

For JEE-Main preparation :-

https://learn.careers360.com/engineering/jee-main-preparation-material/

To have a list of all those colleges which you can get based upon your marks, category, and state you can use JEE-Main College Predictor:-

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Feel free to ask doubts in the Comment Section.

I hope this information helps you.

Good Luck!!