Bigg Boss 4 was the fourth season of the Indian reality TV series Bigg Boss. Kamal Haasan returned as host of the show for the fourth time. The show was launched on 4 October 2020 on Star Vijay and also available on Disney+ Hotstar. The season's finale took place on 17 January 2021 with Aari Arujunan winning the Bigg Boss title with the most number of votes in bigg boss history., whereas Balaji Murugadoss emerged as the first runner-up and Rio Raj appeared third . Anitha Sampath, Balaji Murugadoss, Ramya Pandian and Suresh Chakravarthi returned as contestants in Bigg Boss Ultimate (season 1).