Totally 5 rounds.. one round per week. It almost took more than a month to complete all rounds. But they totally wasted time.
1 round was skype call with hiring manager in US.
2 round face to face with sse
3 round again face to face with same sse
4 round face to face with chief architect
5th was HR round with HR director. Later, i did not receive any feed back from hr.