I think it was three rounds during two days. They all followed the same pattern of technical questions followed by behavioural. I remember one of the interviewers was particularly nice and asked me to elaborate further one of my behavioural questions.

The first interview is 1 hour, with 5 minutes of introduction (resume), 10 minutes of general/behavioral questions, 35 minutes of coding challenges, and the last 10 minutes for asking challenges. If you passed the first interview you'll get the next one which is a two-round interview with two different people using the same process.