This is often the first thing an interviewer asks. This is a question, which can make even a well-prepared candidate stutter. However, if you keep in mind the fact that the interviewer is asking the question as an icebreaker, or for understanding your thought process you are interested in discussing it is an easy question to answer.
No wonder, you Indian are actually the root cause why WWL became one of the worst company to work for! You all have destroyed values that once were there and when I say that, I mean than you Indians have destroyed the company on the world wide level!