1st step: Online test 2nd step: one on one interview third step: Assessment center of about 7 people for the online test practice GMAT, and other online aptitude tests. One one one interview looks to check your fit for the role, spoken English, confidence normally done by a consulting company. Assessment center has about 7 or 8 people, it has about 2 group work exercises, 1 case study and then a one on one interview normally grueling, takes a whole day normally 8am to 8pm this is to check energy levels of participants so you must not look tired at any point in time.