Dear aspirant.

Hope you are doing well. Branch is change after 1st years, it will continue where you change it. You not need to do 1st years again because 1st years Syullubus us same for all Branches in 1st year. Hope this information helpful for you.

Thank you

Hi.

It depends on how are you changing your engineering branch.

If you are changing branch through college guidelines by earning a good CGPA in 1st semester then you will be able to resume your upgrade/changed branch from 2nd semester.

If you are taking a lateral admission then you will resume your branch from 2nd year.

Good Luck