I am afraid you might not have a chance in the top nits, however try the college predictor to get detailed info of nit colleges based on your rank. Here's the link: https://engineering.careers360.com/jee-main-college-predictor?icn=jeemain-clgpd&ici=quick_links

All the best!

your marks in JEE mains are very very less

see to get a college through JEE mains first you have to clear the cut-off then get a good score higher than the cut-off so that you can get a college .

you still have time you can prepare for state exams or take a year off to prepare for JEE mains again

best of luck :)