The interview process was very simple, HR confirmed the call with one of the managers at Energy/Environment Division. Though I had less/no experience in this domain, HR insisted to have the call. I was asked how does a battery function, which the interviewer basically might not have liked the details, with this weird question, he understood that I am not eligible for this position. Kudos to that guy who made such a quick decision. So please next time, if you want some person suitable for some domain, please don't disturb other guys who don't have experience in that specific field.