Very easy to practice, very similar to their practice case. I followed a similar outline to the funnel they used for market sizing, at least. Most graphs they show are very interpretable and very epidemiology-dependent.

Very hard offline process with 2 rounds of case round and 2 behavioral rounds. The case rounds were of 1 hr each where 30 minutes to solve the case and 30 minutes to explain it to an interviewer. Behavioral rounds were more of guesstimates and puzzles

1. OA where they asked apt., eng. and the usual stuff and also to write an email. 2. In the interview they sowed a bunch of data and graphs and asked to analyse them.