This is applicable regardless of what branch you do the course. Most of the engineering graduates find their passion only when they finish their course. So it takes around 3 years just to discover what they like. I would suggest, if you are thinking of opting engineering course, make sure you have a good idea about what you want to choose as your future job. Because every engineer finds it difficult after completing the course. Don't take much advises from outside because it's going to confuse you more and more. Focus on what you know, what kind of interest you have. Choose your interest of subject so that at least you do not regret once you choose your stream.