I interviewed on the phone and then in person in the office. The phone interview was with the hiring manager and the in-person interview was in two parts, first the hiring manager and then two of my potential future coworkers.

Contacted by HR via email to set up a 30 min phone interview --> 1st round phone interview with HR --> second round 30-min phone interview with Manager --> 3rd round in person interview with two different people in the manager role. 3rd round interview took more than an hour. One interviewer asked basic questions, and second interviewer asked many tricky situation-based questions. Told that I would be contacted in a month regarding final result. Was never contacted so I send an email to HR. HR replied me 3 weeks later asking me for another in-person interview. Went for another in-person interview, took about 1.5 hours. Told that I would be contacted in around 1 week regarding final results. Still not contacted and it has been more than 1 month after the last in-person interview.