Dear Subhadip,

Not an ex student in Academy of Technology but I know what the odds are of changing your branch after first year. As per your query I assume that you already study in Academy of Technology. So for changing your branch after first year at first needs you to have a cpga 8 throughout your 1st and 2nd semester . That is the minimum eligibility for changing branch and after that you need to fill out some forms maybe in the time of admission or after completion of 1st sem and write a letter for changing your current branch. Hope this helps!