The online test consisted of 2 sections. The first section was Technical (according to your branch) and consisted of 30 questions (30 minutes time limit). There were both numerical and theoretical questions. A good grasp of concepts is required to clear this section. The next section was the Aptitude Test (common to all) and consisted of 60 questions (60 minutes time limit). There were questions on Reading Comprehension, Logical Reasoning and Quantitative Ability. Practise these types of questions online. Overall, completing all 90 questions in 90 minutes was a difficult task. 78 students made it to the next round.
Groups of 6-8 people were formed for the GD. The topics were not tough but keep in touch with current affairs and the latest technological developments. The topics given were Agricultural Reforms, Digital Media vs. Print Media, Data Localisation etc. Everyone was asked to give a short introduction. 2 minutes of thinking time was provided after which the GD went on for 12 minutes. In the end, everyone was asked to provide a conclusion of the GD in a maximum of 30 seconds. Do not waste these 30 seconds in thanking the panel, just get on with your conclusion and thank them if time permits. The panel is particular about the time. 28 students made it to the next round.
The most enjoyable round. On paper, it's a technical interview, but in reality, it's a behavioural cum HR interview. The interviewers are some of the friendliest people you'll meet. They will not put you under any pressure or stress-inducing situations. It was more of a friendly chat rather than an interview. They just want to know you better. All the questions were based on my resume and past experiences, so make sure your resume is formatted properly, has all the relevant info and is palatable. Basic questions such as, 'Tell me a time when you used your creativity to solve a problem', 'Tell me when you had a conflict with your senior' etc were asked. Refer to STAR methodology of answering such questions. 9 candidates (4 Chemical, 4 Mechanical, 1 Civil) were finally selected.
Fluency in spoken English certainly helps and is of paramount importance. Be yourself and answer everything based on your experiences. There is no need to panic. Smile always, and be prepared. All the best!