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.

You have scored a very good marks in GATE exam and you have qualified the cutoff criteria ..

Cutoff is the list of minimum marks needed by a candidate to be eligible for admission in their preferred course..

You can expect any college except IITs because they expect more marks in mechanical course..

As you have qualified the cutoff so, you are eligible to take admission in any college which accept gate scores for admission in pg courses..

Good Luck!!