I applied through university. The process took 1 day. I interviewed at Atos (Gāndhīnagar, Gujarat) in Mar 2016
Interview
Mostly there is a aptitude test and then GD, PI's and all but as we were very few in number they took just PI of all the candidates(Campus placements):
First technical followed by HR where no tough questions were asked.
It was very quick and each candidate's process took just 15-20 minutes.
Interview questions [1]
Question 1
Normal Intro and description about the past projects and the motivation to work for Atos.