They had come on Campus. First round they had an aptitude test which your basic aptitude level of questions. Here they eliminated those who didn't clear the cutoff. Next they had a coding round where two questions were given and you could solve any one. Here they see your approach rather than you writing the correct code. Be confident in this round, they will definitely quiz you on the basis of the code you've written in the coding round. Last round was the PI which is the most trickiest of the lot. They asked me questions on Core Java which I was able to answer. They asked puzzles and riddles as well. Later they moved onto more complex questions in Java which I was not able to answer. As a result my interview ended quickly. Zycus is an excellent firm to work for. They are known for their software development.