Your question is IPL Tournament System. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Design a system for an IPL tournament: pre-match polling/voting on match winners, post-match leaderboard, notifications to voters and winners, milestone-based rewards (10, 30, 50 wins), and overall tournament rewarding.
Asked in the Round 3: Design Round (LLD+HLD) stage. The expected breakdown includes Tournament → Matches → Teams, pre-match voting and panels, post-match leaderboard, notifications, and rewards.