If you are a fresher, you will go through a written round, which is purely technical. After that someone will make sure that scores of the exam actually are true and you are technically capable.
Then someone from Compro will have a technical round, which will consist of puzzles and codes. And this will go on depending on who conducted your interview. As soon as you reach someone senior your process will end otherwise you will keep on going through the cycle. Since interviewers at Compro have a specified set of questions you might just start getting repetition of them. But, they are fairly simple. Just dependent on your interviewers mood if he wants you to go further.