1. For an Electrical Engg. I would recommend you to go through Electrical Machines, Maintenance, Drives, Electrical Instruments & Basic Electronics. 2. Also properly go through the project you've done during B. Tech. 3. If you don't know the answer for any question just tell them straight forward rather than giving wrong answer or any excuse. Instead you can say " I have taken a note of it and I'll definitely work to improve upon it ". This kind of reply portays a positive attitude. 4. And the most important thing, Stay Confident. I've seen many people who were technically not that sound but still were able to grab offers just because of their positive attitude. Remember all these points. And @ the end Best of Luck ! 😊