I was hired via the referral process. I had to interview with 5 people including the HR recruiter. There were no case studies. The first interviews focused on my past work experience and areas of expertise. The final interviews were with the Partner of the practice to see if I would be a good fit and where I could be placed.

you get referred. then you apply to a referral link , after that they will call you to schedule tech round which will be over webex. you need to carry identity proof. Once you are tech select then another round of interview will happen for (PDM) round it will be HR + tech as well.