hii somnath
there are lot many factors that would decide the rank category,Date of exam, marks,exam slot so kindly refer the below link to try it
https://engineering.careers360.com/gate-score-predictor
but you have scored good marks., .For IITs, your GATE score is near about to 800.
Here is the cut off trends of previous year for IITs
Https://www.google.com/amp/s/engineering.careers360.com/articles/gate-cutoff-for-ce/amp
I would also like to recommend try for college predictor
Https://engineering.careers360.com/gate-score-predictor
regards
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