There were three rounds and I did not receive any update after 2 weeks of last round and received no update regarding my last round of presentation and interviewers were rude as well.

There were 3 rounds in total, where one was with the hiring team to find out if you have enough interest, then with someone above them, who was testing the technical skills and more background. Finally was a presentation where you had a week to present about a given topic to 2 interviewers.