The person who took the interview was a very rude and arrogant person. Didn't know proper English to speak. It was all theoretical question like read from a book or so. The interviewer didn't have the basic manners to introduce himself. After years and years, humans have evolved to work practically and there is this guy still working on his theory. There was no designation given. Communication gap was there due to language barrier. I won't with a company which doesn't have etiquette and manners