Experian interview questions

Formal but friendly. Introduced themselves, took me to a meeting room. Asked questions around my past and experience Followed by giving them examples. Followed by any questions I would like to ask them, they gave initial feedback on my answers which gave a good setting for how I was doing.

Quick hr reply with normal wuestions. On site interview after 1 week. Technical question plus many behavior questions. Group meeting with one by one interview. But the final result is slow. I already think it's reject me but gives me offer 2 weeks after interview.