Hireview with 3 set questions sent to you via mail in advance. You get time to prep for those questions before the interview.
Assessment center day involves a group work project and solo interivew.
Interview involves questions about tell me a time you struggled and how u overcame, give me a time when you were not able to complete the task.
You need to know about the history and background of the bank, including key pillars for the group project.