You can check your chances in various colleges based on your score and category, you should try Careers360 college predictor and rank predictor.

Link for Careers360 rank predictor:- https://engineering.careers360.com/gate-college-predictor

All the very best and good luck.

It is easy to get into iits with that score. This urls can help you to go through the cut off marks required for different institutions : 

1.https://www.google.co.in/amp/s/engineering.careers360.com/articles/gate-cutoff%3famp

2. https://www.google.co.in/amp/s/exams.collegedunia.com/gate/cutoff/amp

To predict your clg this url might help you : 

 https://engineering.careers360.com/gate-college-predictor

Hope this answer helps you. 

And congratulations for your son's result.

Hello Jyothika,

Congratulations! He has scored very well.

Definitely he can get any of top IITs. There are high possibilities that he can get into PSUs depending upon number of recruitment this year. But it is sure that he can get any top IITs such as IIT-B, IITD , IIT-M, IITK etc.

Thanks for Contacting Career360.

All The Best.