The participants underwent a 2-week quarantine before joining the show which will be aired on 4th October in Vijay TV.
While everyone is eagerly waiting to check out the participants tonight, leaked info from the grand launch recording suggests that 'Pepsi Ungal Choice' producer cum supporting actor Suresh Chakravarthy is a confirmed contestant of the show.
This is what Suresh posted on his social media recently:


Are you excited for Bigg Boss Tamil 4? To watch Star Vijay, head to Astro Ch200 to purchase Chakravarthy pack now!