Dear student,

I would like to tell you that you must clear what you want for your future. If you are so interested in CSE you should have taken up cse in your b.tech as well. This will definately affect your m.tech.

What i suggest you is to take up a course and have certified trainings in programming and codinh etc. before you appear for GATE and go for m.tech in cse.

all the best. I hope this was helpful to you.