1st round is written where you will be given an easy case study with some ratios to calculate and present everything in a power point presentation of 4-5 slides.
2nd round is f-2-f where Manager would ask about current job profile, what you do in entire day, describe any recent project in detail, power point & excel skills, and most important is Guesstimates (might ask multiple). Also, since it is an IT company, they will ask questions about IT industry (like recent trends, cloud news) and also about recent key happenings at Oracle and what it is doing in cloud technology (any new acquisition or launches)
Last round is only taken by Senior Director if you have cleared 1st two rounds, which is not very technical but mostly general.