Mentioned 4 rounds Round 1) two points - 2 questions - easy -medium (postive) Round 2) variety of largest area in matrix , easy graph trace (postive) Round 3) interviewer joined late and asked some questions on .net and started with simple design round - store - product - place order first he agreed then he started let's go in different way and most of the time wasted I felt he doesn't have interest in taking interview.