Hello Aspirant,

Based on your percentile(80)  your overall rank will be around 1,74,895+ , and your category rank will be 14,000+.Although it is expected rank, actual rank may differ from it. With this rank It's difficult to get the core branches in nits and iits, but you can get seat in nit of your home state.

You can get the complete information about marks vs  percentile vs rank chart by the link for the same is provided below:-

https://engineering.careers360.com/articles/jee-main-marks-vs-percentile

You can also use the JEE Main College predictor tool given below to know your chances of best admission possibilities through JOSSA & State level Government & private colleges.

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

All the best!

Hope this helps you