Dear candidate there are chances to change your stream from B.Tech one to a different stream in M.Tech through GATE Examination. When you appear for GATE then you have to crack it with a good rank followed by changing your stream to IT during Application. If you crack the exam, you would get a chance to do M.Tech in IT in any renowned college or University and pursue your future plans. Prepare well for the exam and go for the branch you like,

Good luck!!