Pi was good, nothing to worry about. Mine was only of 3 min duration. If they ask u ur fav. Subject then just b prepared to answer the further questions about it. Do read the headlines in the newspaper before going. Rest they wil ask the expected ques. Why MBA,why Christ, which specialisation and why, ur strengths and weakness and be prepared with some examples to support ur strengths.al the very best to those who r left. And to others for the results.