First of all, we need to pass all the online examinations they conduct to move on to interview process, i only had one interview round which is completely technical in which they mainly focused on Python and SQL, and again it is completely based on the cluster you have chosen in the coding exam as there are two clusters one is Java and the other was Python, and another thing is, it also depends on your resume, they go deep on what you have mentioned, but as i observed, SQL is most commonly asked topic.