Which engineering branch is better between information technology and automobile?

Sir ji don't go with which stream is better. Go with what you want do after studying B.Tech. You may take following considerations. If you like computer, want to build crazy application or something related to software go with Computer Science engineering. If you like playing with machines/motors or

The definition of better varies from person to person and is influenced by personal inclinations and one's strength for e.g. some people might go with the regular stream like IT, mechanical, electronics and some might go with not so common branches like robotics, petroleum, and mining. Opt for the e