After one round of written (general aptitude) and video assessment, there were one case study and its interview and one behavioral interview. Case study consisted of 4 questions based on real situation. 4 questions each consisted of 2-3 graphs and you need to analyse each before calculating the answer or at least figuring out the approach. The case study interview will depend on your communication skills and how clearly you express your approach. My behavioral round went for around 45 mins , consisted a brief discussion on my resume. No puzzles were asked and even the guesstimate was based on my engineering stream. I felt this interview almost the same as the video assessment , along with some cross questions this time.