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.

 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.