Applied through Resume only (No cover letter, although I would of course advise in favor of it. I was either lucky or they found something really great in my resume). Received a 1st Round Phone interview with a senior hiring manager/consultant who has been in the life sciences consulting industry for ~30 years. ~90-100 minutes. The whole gamut of behavioural questions, but in a very friendly manner. You will enjoy it. 2nd Round phone interview with senior consultant for another 30 minutes. General questions about science and interest in consulting. 3rd & Final Round Onsite. Whole day. Written Case. Materials given a day/two early. Then on the day of the interview, first a discussion with the manager/senior consultant abt the problem and your objective.I was given a room and a computer to work with and was to draft a proposal by the end of the day. Throughout the day other consultants would come in and talk to me. Great experience. All in all this was a great firm to interview with. Everyone seemed genuinely interested in you and they WILL NOT ask you to come for the final round unless they are actually sure you fit the position.