Tata Consultancy Services Senior Software Developer interview questions

Interview was foggy since the HR contact i had did not shared basic information about it , he just appointed an time. It was unprofessional in so many way, I did not expect an enterprise company to be this chaotic. The interviewer forget the interview and late for 15 minutes and they just joined because i called the HR and than they was notify to join me on the interview, also they was not polite by saying apologies or anything. The interview was short and not well structured also the interviewers pronunciations was weak so it was hard to understand their question.