Not much hard, but one should have a clear understanding or knowledge of his or her subject, 3-4 rounds of interview are there : resume shortlisted, written test, demo, personal interaction.

Quite smooth and easy. There are at least three rounds, rest, depends upon your interaction and performance. The stakeholders are quite humble and polite. Demo is one of the most crucial part of the interview, it happens in a regular ongoing class of your subject.