The entire process took 2 days. 1st day was aptitude test. It was conducted by Aspiring Minds on behalf of Amdocs as preliminary screening. The papers were - Quantitative, Logical, English and Programming (C/C++/Java based on your preference).
After clearing the aptitude we got call for interviews.
First phase of the interview as Technical Interview. I was asked questions based on all of the skills mentioned in my CV in details. I gave Linux as a skill. He asked me what I did with the Linux distro in details. Next I was asked about C\C++, Python & Assembly Language (All of them were in my CV).
I was asked about different algorithms. And asked to write a simple program implementing Binary Search. I also was asked a simple Probability Question which I answered at 3rd attempt. He also asked me about my hobbies and asked technical question from my hobbies. I gave Photography so he asked about aperture, ISO,etc.
People who qualified in Technical were sent to HR Interview.
HR started with basic intro. Next she asked me about my hobbies. What I know about Amdocs. If I wanted to relocate, I wanted to work in night shifts and if domain change was okay with me. Next she asked about future plans. After that I got the offer letter on spot.