Dear Ma'am,

As you are mentioning rank of your son I am giving you two option first is the link of the article where you can see the previous years cutoffs and based on that you can have a rough idea whether your son will get IITH or not.

Link: https://engineering.careers360.com/articles/iiit-hyderabad-btech-cutoff

Second is you can go to this link below and see which colleges your son will get with this rank by putting his credentials.

Link: https://engineering.careers360.com/jee-main-college-predictor?icn=JEE_Main_clgpd&ici=JEE_Main_article_contmap

Good luck