Data structure and graph related questions were asked with some behavioural rounds. I would say it is Difficult on the 3rd round of the interview where they focus on leetcode problems.
Interview was very easy and the interviewer asked various questions based on data base and SQL and little bit about Java or any programming language you are familiar with and asked to write a program for reverse string
Interview questions [1]
Question 1
What is the difference between data Analyst and data scientist