OYO Data Scientist interview questions

Started out good but ended as a very bad experience (WASTE OF TIME). I had 5 rounds with 1 being HR screening round and 4 technical rounds after which I was rejected without any feedback. All of them were pretty good and the interviewer was happy at my answers. Upon asking for feedback multiple times, the HR just turned blind eye and never responded with the exact reason. After 4 rounds, the HR did not even call to reject you. It was just via email without any specific reason.

The whole process consisted of 4 Rounds 1. Round 1 -> Test (Aptitude, SQL, ML, Python) 2. Round 2 -> Group Discussion 3. Round 3 -> ML Round 1 (Basics of ML, Resume, Stats) 4. Round 4 -> ML Round 2 (Bussiness Case Study in ML, Stats)