At first, the interviewer was not at all in a mindset to take the interview. Instead he was Simply boasting about northies and complaining and harassing about people from down south. Not even a single technical question he raised instead he was busy in portraying as a greedy person since I was holding an offer already. I ended the session and forwarded the recorded session of interview to the HR and told them I can even post this on social media or any YouTube channel for mocking and harassing the people from south India. Then they came up with a apology mail.