First round is an online assessment, one Python question and one SQL question, the level of difficulty is normal. Python will be ask for writing one function, SQL will be ask for cleaning data like group by, sort by, etc.
The first round is a coding test via Hackerrank, and it contains two python questions that you need to finish in 60 mins. The deadline to finish this coding test is 3 days since you received the email.
OA then mostly behavioral interview. Most technical questions they'll ask is about projects on your resume. Make sure you are personable as this role is client facing so that's mostly what they are looking for.