Apptitude Tests, HR Interview, Assessment Centre, Managerial Interviews The tests are of a medium difficulty, and I think they value more the quality of the answers than the number of answers. I'd say it's impossible to answer all questions. The HR interview is pretty standard. A bit more serious than others. And loong. The assessment centre is made of 3 stages. A group dynamic and two work situations. I didn't reach the last part. If you reach Assessment Centre it means you passed many stages already, so feel confident!