I got a call from HR where she asked me about my background and skills and scheduled the first round. First round was a DSA based round where they asked me variation of tree path sum question, which I took bit of time to answer. I think that still they qualified me for the second round where it was go LLD round where question was to parallelise a serial execution of code, which I feel I did very well and interviewer was also happy.

After that I got to know that the feedback was negative which I don't think should be a case. I think it was my notice period which they were bothered about and I would have appreciated if they were more straightforward on the rejection reason

Went into depth of previous experience, tried to understand if I know distributed systems very well.