My interviewers at Christ University cross questioned me a lot, and asked some questions to which I couldn’t give an answer. Does it happen often, or should I be nervous?

I was asked a lot of questions and got selected. Two possible things

1. They were very interested in you and they want to know more about your interest and knowledge.
2. They were confused if you were fit enough for the course.

No one can say this for sure unless result is out. (I am sure it must be out by now) But one think is for sure, they were not thinking about rejecting you while asking questions. No one wants to waste time 🙂

Whatever it is, don’t worry. Sometime they try to see if you accept that you don’t know the answer. There are few students I have seen who speak completely irrelevant things just to ‘speak’.