SAI Life Sciences interview questions

Online initial call then on site interview. On-site was 3 hours long with a technical and HR component (1 hour). Technical included retrosynthesis and a forward process synthesis (1 hour).

Interview process was completely through phone. I had to sent some information (Salary slips) through email. First round was telephonic with senior leader. Second round was with Senior leader through MS teams. Third round was with HR Head, MS Teams. All rounds went well, up to 1 hour interview, each round. Fourth round was told through MS teams but taken through phone without even blocking the Calander. It also went well but no feedback received yet. I found a bit unprofessionalism in the interview process. There was no information passed to the candidate by HR. Still I don't know what was the result of that interview. Complete waste of both sides time.