Round 1 ---- 1st Technical F2F
Round 2 --- 2nd Technical F2F
After clearing both rounds HR came and told you are selected and next round will be manager round, that is only formality, he will ask normal questions like why cerence etc.
Round 3 - Manager
After that HR Asked to share current company documents on email.
Next day i asked for update on offer letter, HR replied you are not selected.
Very unprofessional way , really it was big shock to me.
i suggest dont trust them till you can't get offer in hand. Very pathetic.