The number of interviews depends upon how you perform in the first one. Say, even if you do well in the first F2F, you might be called for a next round. Some of us were even offered only after 15 min of F2F. So, a lot depends upon how you introduce your academic project. Interview questions were pretty straight forward. Reverse a string, Finding the number of occurrences of a particular letter in a string. Academic Project etc. Result was out in span of 5 days. Sunday - Test, Tuesday - F2F, Thursday - Offer.