hi,

see cutoff score changes every year and it depends on some certain factors like number of participants, questions difficulty level, seat matrix etc, however you need to score more than 40 marks in gate exam according to get admission in dtu, you may also apply for jadavpur university, colleges of anna university.

at this score you have moderate chances for dtu.

You may use Careers360 college predictor tool to know your predictable colleges

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