Hi Harsh,
Computer science, Civil and mechanical are core branches. These three streams are evergreen. Automobile engineering is subset of Mechanical engineering. Any candidate with a B.Tech in mechanical is eligible to appear in automobile industry placement but converse is not true. Automobile Engineer will have tough time to get a job in core mechanical profile. That is why if you are interested to pursue automobile it is better to take mechanical. Now coming to the best stream it actually depends on your interest because that is the only thing which can make best out of any situation. You may have read this before that beauty lies in the eyes of beholder so if you are passionate about any one of these streams you can make it best for yourself.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile