YOU 12TH MARKS IS VERY GOOD BUT IT IS JUST AN ELIGIBILITY CRITERIA FOR ENTRANCE EXAMINATIONS. SO WITH YOUR JEE MARKS YOU WONT ADMISSION IN ANY COLLEGES. ALTHOUGH YOU TRY PRIVATE COLLEGES WHO HAVE THEIR OWN EXAM FOR ADMISSION.

12th board marks will get you nowhere for JEE mains admission into colleges

also if you belong to general category you have not qualified for JEE mains

refer to these links for your help

https://engineering.careers360.com/exams/jee-main

https://engineering.careers360.com/articles/jee-main-cutoff