Round 2: After clearing the aptitude test, you will face a case interview. There is no difficulty gauge as the cases differ from interviewer to interviewer. To prepare, you can use "Case In Point" to go through some sample cases and understand the thought process behind solving them. BUT, since it is all about problem-solving, no one can teach you the same.
Sigiloso
Practice aptitude tests online (NMAT level) Read Case in point and solve the cases Through research about the company and role