There were 3 rounds and one more HR round. Initial 3 rounds were all Technical in nature and were moderately difficult in nature. Better to be prepared with all the basics of what you do.

6 rounds 1 - Fitment 2 - Case 3 - Case discussion 4 - General case discussion 5 - BU head 6 - HR These are the only rounds spanning across 2 months after which the offer was made. Decent experience.