I score 89.81 percentile in jee mains now what should i do

Hey

You have a low chance of getting into government college but
You can go for top private institutions like Thapar University , Jaypee Noida , etc. There you'll have a chance of getting even your desired branch.

For other available colleges with your rank you can check on our college predictor link provided below
https://engineering.careers360.com/jee-main-college-predictor

Hope this solves your query.
Good Luck!!