Shell Business Analyst interview questions

there are 4 levels of interview. it starts with a telephonic round and time controlled for an hour, once selected then will go for 4 hours face to face round, which includes 3 rounds. the three hour interview will be time monitored and the interviewer will write lots of notes. first round consist of your experience, second round about ur challenges faced and how did u handled it, and the third round will be personality and behavioral round