I answered almost all the questions but missed to answer two basic questions.After the round got over, HR has called me and told that we are fine with you but you need to refresh the basics so that we ll have a quick check again and can proceed further next week. A day later I got the mail stating that I have not cleared the interview.I don't know then why they are saying that they are fine with me immediately after the round got over.It's totally disappointing.