I was hired in a campus selection process. It consisted of written tests, GD, personal interview. The written test comprised of questions from both electrical and electronics engineering. The GD was on the effects of Global Warming (they wanted us to have a topic anybody can talk on, it wasn't a test on general awareness). But only 2 out of 12 people who appeared in GD got a chance to appear on the interview. The interview was pretty much casual.