Its was so wired. One person handled 8people's interview one shot. My interview just happened for sake. He handover me a problem which is to create own cache mechanism in java and meanwhile he went to other candidates and when i called, he has come to me and listened my explanation. He point out some issue in it and went off to other candidates. When i finally completed that he has given one more problem to sort stack with temp stack and i explained him few ways to do that and thats it. Its over.