I had about 6-8 interviews with their team over a course of a month.
It started off with a coding challenge that had to be submitted in about a week of time. The following interviews were then technical in nature with all the team members touching topics like InfoSec, Systems Engg, Platform Engg, Algos & Database.
After clearing through all of them, they gave me an offer which was way below the market standard and on requesting a negotiation with the hr, they came back and said they were just cancelling the offer.