How should I prepare for MS Mechanical test at IIT Madras?

The written test for MS Mechanical has 3 major topics to choose from: Design; Thermal; and Manufacturing.

The section you chose has to be necessarily the same for both written and interview. There are a total of 12 questions in the written test - 10 questions from chosen section and 2 questions from Maths.

Every question carries equal marks (2 marks). Usually, 8 questions are numerical based while the rest 4 are theoretical. Numerical questions were based on engineering topics like SOM, Tom, and Mechanics while theoretical questions were highly conceptual. One has to answer around 8-9 questions to get shortlisted for the interview 

Once the shortlisted candidates' list is released, you are required to go for document verification. You will be informed of your interview date as well. You might be asked to bring a copy of your first-year project along with you and will be asked questions related to it. 

Once summoned, you will be asked to select 3 different projects out of 3 different specializations. (Thermal/design/manufacturing) for the MS course. You will be asked basic questions from the topic you have prepared beforehand and sometimes additional mathematics questions are also asked. 

Overall, the interview is not as difficult as it seems and enough preparation will get you through.