Dear AJEET

I DONT THINK YOU'LL BE ABLE TO GET ALL THE COURSES IN IIT GUWAHATI EVEN WITH OBC CATEGORY, YOU MIGHT ONLY GET 1-2 COURSES UNDER "ME" ONLY.

but dont loose hope, i am giving a link of GATE cutoffs of previous years,which contains-

category wise GATE minimum qualifying percentage , past years GATE cutoffs which further includes year wise cutoffs, course wise cutoffs and college wise cutoffs.

This will help you find a suitable college according to your rank!

https://engineering.careers360.com/articles/gate-cutoff

GOOD LUCK and KEEP ASKING

Hello ajeet following is the link provided regarding the marks of IIT guwahati .. 

please do refer : https://engineering.careers360.com/articles/gate-cutoff-iit-guwahati

all the best