According to experts 17, Mar 2021- Shift 1 was Moderately Difficult and Your Overall Percentile  can be 90.36 - 93.22 .

This is good percentile but in order to get CSE in NIT's then you should attempt the coming session of JEE MAINS 2021.

You can visit the link below for JEE MAINS predictor 2021:

Visit the link below for JEE MAINS college predictor:

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

I hope this answer helps. All the very best for your future endeavors!