I was referred and got a mail from HR to complete a logical, reasoning, numbering test. A few days later got an invitation to AC, there were some standard tasks again like repetition of the before said test, monotonity test, group exercise, English test, accounting test. Few days later phone rang again and got an invitation for partner interview, that is usually 30-45 minutes with focusing on motivation and engagement to join a highly demanding and stressful environment. Giving the right answers will result in an offer within the next days.