Stage 1:
Telephone interview with hiring manager
Stage 2:
Aptitude test (they use SHL as their provider mostly)
Exercise
Presentation of exercise results on flip chart (interviewers ask questions in between)
Interview with 2 interviewers, no one from HR
(biographical, competency based and also some brain teaser questions)
Whole ordeal lasted 4 hours so make sure you have a large breakfast/lunch before!