40 mins phone interview which was very technical.I got selected for F2F interview. It lasted around 2 hours.First round went bad with very tough interview questions and puzzles.Second round was much better .There was a panel of 4 people.All the time i was writing code and optimizing it.3 interviewers were pretty good with me,but one was really very strict .He asked me TPL questions which I thought no one really asks.I got rejected as expected