It was approx 50 min you need to clear two round before interview. The difficult level was moderate. Prepare SQL and case studies and guesstimate that's all you need. Interviewer was quite supportive and helpful when I was stuck.

OA -> Technical coding rounds -> Tech interview -> HR Round -> selected. The Tech Round was on medium level SQL and project related. It went pretty smoothly, I was asked some guessimates and puzzles in the HR round.