Dear aspirant
At first lots of congratulations for your results . I can predict your score is about 55-65 and rank is about 85000-110000.

.According to trends of previous years and this year's JEE MAIN cut off I am happy to inform you that your chances of getting admission into colleges NITs and IITs are almost are pretty good. .One thing is  important that admission in those above mentioned category entirey depends upon that particular category rank , not the All India rank. Some of NITs and their respective departments you can get are

NIT CALICUT

Materials Science and Engineering

NIT JAIPUR

Metallurgical and Materials Engineering

NIT ALLAHABAD

Bio technology

etc.

you can get more departments in various  NITs if you belong to that particular home state

NIT BHOPAL

Materials Science and Metallurgical Engineering

NIT CALICUT

Bio technology

chemical engineering

civil engineering

electrical engineering

production engineering

NIT DELHI

electronics and communication engineering

NIT TIRUCHIRAPALLI

Metallurgical and material engineering

etc

you can check previous years cut off
https://engineering.careers360.com/articles/jee-main-cutoff-for-top-nits
check your chances here
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Best Wishes.