I gave interview over IDZ for 3 times, but I haven't been shortlisted for a single time, there is a shitload of questions they ask over machine examination by PC. Even though having good knowledge in Java or other respective language, they won't hire you as they want magic shows using programming code. I would suggest fresher's to not go over there as you will waste your time.

It was 2 rounds first was apti 15 questions and coding 3 question they has asked reverse a num, palindrome and count the number the second round was logic buliding in that there was a game a puzzle which you have to solve there levels in this game the more you solve it is better