Can I get iiit with 87 percentile obc category in csab2 CRL rank of 145k

Dear parent,

Aa you have secured 145000 CRL rank in JEE mains 2020 from obc category, then with this much rank in JEE mains the chances are negligible for you to get seat in any iiits in both csab special round counseling.

As per your profile I can assume that your son belongs from andhra pradesh, then also by applying home state quota, there is no chance of getting any branch nit andhra pradesh, not even in 2nd csab special round counselling.

But you can get branches in some gftis like mizoram university, gurkula kangri vishwavidyalaya, Ghani Khan Choudhury Institute of Engineering & Technology, etc in csab special round counseling.
In csab special round you can also get some good gftis like Sant Longowal Institute of Engineering and Technology, etc.

Also check out the following link to know more about previous years cutoff for csab special round counselling ( note that, all the mentioned ranks are CRL ranks for every category, not the category ranks ) :-
https://engineering.careers360.com/articles/csab-special-round-for-nits-iiits-and-gftis

Also check out our jee mains college predictor tool to get an appropriate idea of the colleges that you can get on basis of your jee mains rank :-
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer