This is the most common search for "Season 5" currently, as it is a highly active franchise. (For context: Bigg Boss Hindi is currently on Season 17/18, while Bigg Boss Tamil recently concluded Season 7).
To cast your vote, simply follow these easy steps: bigg boss season 5 vote
Assuming you mean (since that's the most searched "Season 5 vote"), follow these steps: This is the most common search for "Season