Commvault Software Development Engineer (SDE) II interview questions

First of all, the students were shortlisted on the basis of percentage, ie, 80% in all fields. The first round was of aptitude and technical MCQs. After the first round, 70 students were selected for second round out of 1800 students. The second round was of coding which consists of 4 programming questions in 90 mins.I have solved 2 questions completely. After second round 21 students were selected for the third round which is called as massive/long coding round of 4-5 hours. In third round, you have to code for a real-time project. We were asked to design a music player in any of the language. Every hour is eliminating. Students were eliminated every hour. I remained in the round until last. Finally, 4 students were selected for the technical/HR round.At last two students got selected.