Mu Sigma Associate interview questions

Applied through their website and got a call from the HR. (The HR being located in India meant most of the calls came through well past midnight - something to be prepared for if you are applying from the US). Followed by 2 rounds of interviews with engagement managers and one with the geography head. The discussions mainly centered around my resume and experience, nothing statistical was asked. One of them consisted of a case study in my area of expertise. Was offered a position 4th week into the interview process.