This was the first round, and was a computer based test for screening candidates. It consisted of a total of 90 questions (divided into two sections), 45 Aptitude based and 45 technical questions, based on mech core. The aptitude was time taking for many, but for me it took around 50 minutes. The second section had questions from TOM, IC, thermodynamics, MOS mostly and the ones that were from the topics already covered in class were easy-moderate. The scoring pattern was +1/-0.25. Many topics in the technical round aren't covered in class till sem 4, so focus on scoring well in aptitude round and just make the best out of whatever you remember from class in the second section. This was followed by a Psychometric test for those who cleared the first test. It was 100 questions long, and is often exhausting, so keep your mind calm and try to do it fast.
It started with an introduction about myself, followed by a discussion on two of the projects in my CV and a very short HR question. The interviews were all 20 minutes long, and time ran out in these 4 questions itself. If you happen to have core mechanical activities in your CV, it is almost definite that the interviewer will ask you about it. If you don't, they'll probably ask technical questions, though they will be easier from the computer based test. Take your time and go to depths to explain anything in the interview.
Pretty simple and straightforward round with easy-moderate questions. Be calm, think and answer and be confident about everything you say. Out of 7 people who got shortlisted, 2 got selected.
Just be fast in your computer based test, focus on your strengths, and make the best out of the time and it's okay to take calculated risks. It's not only about the amount knowledge you possess, but the activities you have done and how well can you explain it also matters.