They people take apptitude test first with 15 questions, if you crack minimum 8 then you will be in for interview. You have to score good in interview. I think apptitude is worst step for a candidate, if he/she is good in ABAP.

First the resume is shortlisted and then you have to clear aptitude. Once you clear aptitude you will be called for technical round Aptitude test questions are easy. You need to know basic formulae of permutation and combinations and other math formulae.