The choice of the branch is always yours to make. People can advise you on the same but to make the best decision you will have to determine your area of interest and look up the fields you are choosing from. It’s a very crucial decision and needs to be taken after much thought.
IIT Roorkee Civil Engineering
IIT BHU Mechanical Engineering
Ultimately, the choice of the branch and institute both are matters of personal preference and should be given due consideration.