1st one was HR screening round some puzzles were there. 2nd round was technical where i got asked DSA and had a discussion around previous company's work. 3rd round was much more technical it was a 2 hours long interview where domain specific question were asked and 1 System design question were also there in the second part of it (Basic LLD is required). 4th round was with senior manager it was in-person interview i got asked multiple domain specific questions major discussion was revolving around my previous work experience and one puzzle at last.