It was a very pathetic interviewer. I cleared the first interview, and in the second interview of LLD of 90 minutes, the interviewer kept asking for the reason for the change and that the resume is not aligned (although HR told it was not the case, perhaps due to their portal issue) and literally burnt 30 minutes. I had only one hour left with a bad, spoilt mood. I tried to stay positive and nailed the problem in 45 minutes [long problem]. That is where the interviewer interrupted to discuss the workflows, and I showed it in code and even handled concurrency in two ways (the first being standard and the second being optimised). The interviewer was satisfied and asked me to mail him the solution written in half the time, i.e., 45 minutes. On being asked about the culture, he started cribbing and became a cry baby, talking about weekday-weekend interviews, coding less than 10%, a very fast-paced environment, and the need for people skills to survive, etc., for the last 10 minutes. They said they rejected me. I think that interviewer might have been drunk or mentally unstable. Anyway, I do not want to get interviewed in the future. They are terrible people with the worst interview process.

Zeta is an irrelevant company to me, so I don't want to waste time on them.