Hello

You have got good percentile in JEE MAINS PAPER 2 and you have very good chances of getting admission in top best colleges like NIT and IIIT,as you have told your percentile 98.7,your expected rank should be 1,464.The official cut off these colleges has not been released yet so you have to wait for the official cut off.However you can their previous year cut off of these colleges here https://engineering.careers360.com/jee-main-architecture-college-predictor.And if you want to check the colleges you can get with this rank you can get use college predictor tool to get the exact result from here https://engineering.careers360.com/articles/jee-main-cutoff-for-b-arch-b-planning.

I Hope This Helps

Best Of Luck!!!