It was a very pleasant experience. Everybody was helpful and friendly. The questions would start from basics and the interviewer would build on that. This helped in answering the more complex questions with much ease. I had 2 telephonic interviews (~1.5 hours each) and 1 on-site (~5 rounds). They spent a good amount of time describing about their experience, work and the positions. It was fun to be a part of this interview questions.