There were 5 rounds 1. DS 2. DS 3. LLD 4. HLD 5. HM 1 round: by Hiring Manager (Amol), he asked me about my projects and day to day work (I told him that I did not write any unit test). After this he gave me a DS problem. I never saw that problem prior and worked on it and solved it with best time complexity, space complexity and on time. He was impressed and asked me have you saw this question earlier I responded 'no'. After that he asked me that Do I want to ask anything, I asked him about the company. he took 10 mins and explained about the company all the projects that Bangalore office is having. and interview ended on a good note. Now after follow-up with HR many times got a feedback that you are not selected in this round as panel thinks you don't have exposure of unit test. Even my resume did not speak about unit test. I don't know what were there expectations, if unit test weight this much then they should not even select the resume for interview. I think, they don't know what they actually want and try to interview as many as people and reject them with no sensible reason. :/