I applied online. The process took 2 months. I interviewed at Indian Oil (Neu-Delhi) in Jul 2017
Interview
The interview process involves 2 rounds:
1) GD ( It's simple , one must present his point of view on the topic and keep it simple)
2) Technical and HR Interview: 5-10 technical questions, very basics and finally few HR personal questions.
Just keep it simple is the key.
I applied online. I interviewed at Indian Oil in Jul 2021
Interview
Very easy. Not much questions asked. Can be passed easily but only criteria that eligibility is important and specific number of students from one College. Very good management is there.
I applied through college or university. I interviewed at Indian Oil in Jan 2018
Interview
It was 20 min long. There were five people in my interview panel. Asked some questions about electrical machines mostly from induction motor. Also, they asked some questions from power systems and machine drives.