best collage with cs branch. and jee 85.46 percentile( in obc)

Hello there ,
There are very less chances of yours getting admission to any NIT or GFIT with this rank.
You can personally check the coutoffs for various NIT's and GFIt's from the link given below
https://engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches

You can try to go for other Engineering entrance exams such as bitsat , vitee and other state level entrance exams.
If you have filled form for GGSIPU then uou might be able to get a descent college for your desired branch.

You can also predict your collage according to your jee main rank and marks from the link below-
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer
I hope this helps.
Regards
Madhur