I applied in-person. The process took 1 day. I interviewed at Optima (Vadodara) in Jun 2019
Interview
I went to their office for the interview. At first they asked me about me and my family, what my father does, if I had any siblings or not, etc. Then they asked about my education details, why I chose Instrumentation over other fields. Next they tested my knowledge and skills.
Interview questions [1]
Question 1
Describe how to control a heating tank in most cost effective and efficient way