Gate (CSE)score :542 cgpa:8.72 category:General where all i can apply for ms and phd
see cutoff score changes every year and it depends on various factors like number of participants, questions difficulty level, seat matrix. etc. however ms and phd courses cutoff is compare to less then mtech cutoff. iits offers phd courses to candidates who has completed mtech on relevant discipline. after btech you can go for 3 years ms courses in iit guwahati, iit madras, iit hyderabad, iit mandi.
You may use careers360 college predictor tool to know your predictable colleges
GATE 2020 College & PSUs Predictor
Know your college admission chances for IITs/NITs & PSUs based on your Rank/Score