I applied through college or university. I interviewed at Gmmco (Coimbatore) in Nov 2015
Interview
Aptitude test comprises of basic maths and English and reasoning as well as data interpretation.
Usually Quant and English are easy but reasoning and DI are time-consuming.
The technical test comprises mostly of IC engines, basic mechanical questions, and fundamentals.
Interview questions [1]
Question 1
Why would you like to join a sales and service oriented company?