I applied around early Sept and the process took 3 weeks. There were about 5 rounds starting with an HR round then a zoom interview with the Director of Programmatic, then they gave me an assignment to work on where I had to prepare a 30 min presentation about a programmatic strategy for one of the client and next round of interview would reviewing that assignment and questions on the same. Last round was with another couple of Directors who ask more of situational based, career oriented and business awareness kind of questions.
Overall it was really a good experience for me as I got to know more about myself as where I'm lacking and how I can upgrade my own skills and learning.