my JEE main percentile is 90.50 . In which colleges I can get admission? I am from Bihar and from general category.

Hi Aditya,
According to the given percentile your rank will be around 83000.
On this rank it is not possible to get any NIT or IIIT. I would suggest you to prepare for April session of JEE-Main.
On the basis of your rank you can try for some of the private colleges like :

• SRM University
• VIT Vellore
• BITS Plilani
• Amity University

and many other universities.
You can predict the best colleges according to your percentile and category by using JEE-Main College Predictor .
Hope this helps you. For further queries feel free to ask.

All The Best!!