I applied internally 3 years ago, via online portal. I didn't go through HR round due to internal application. The second round interview included in person interview with 2 managers. After the interview, they said they would let the internal candidates know (in person, confidentially) about their hiring decision after 2 weeks. However, due to an unforeseen circumstance at that time, it took them 2 months to let us know.

Very easy and great interview process, the HR team is very forth coming and helps you with the interviews also advises you on what would be needed in every round