Fourth week inside Bigg Boss Tamil 5 house started on a fiery note as Isaivani was given the power of her 'Neruppu' (fire) coin and it was announced that she will gain responsibility of the kitchen area. Bigg Boss said that she can control who can enter the area, what to cook for the day, who can cook and so on.
As she gained authority for the week, she told Suruthi that she wants to control certain things in the kitchen like not cooking extra items. Later, Priyanka, Niroop, Imman Annachi , Thamarai Selvi, Raju Jeyamohan and Abhinay were seen discussing about her captaincy in the kicthen for the week. As Priyanka said that it is completely in her control to let people to let people cook and eat and has the decision over what people can eat or who can eat, Imman sighed and told the housemates that she will act different for the whole week and went on to imitate her.
Imman was also seen mocking her when she came to discuss inside the room. He told her that she forgot herself when the new position came to her. Later that day, the captain of the house was chosen via two games. 'Ushaar Ayya Ushaar', a name game took place where Priyanka and Mathumitha emerged victorious. It was followed by a ball game where the duo had to collect balls individually via a net as housemates throw the balls at them. Mathumitha was chosen as the leader of the house after the game.
The nomination task was also held today (October 25), which involved the contestants to place papers containing the names of the housemates inside the fire. While Isaivani nominated Imman Annachi for hurting her, Imman Annachi nominated Isaivani as he felt that she is taking too much authority while being the captain of the kitchen area. Finally, Chinna Ponnu, Akshara, Pavni Reddy, Suruthi, Isaivani, Abhinay, Imman Annachi, Varun and Priyanka were nominated for elimination. Although bigg boss allowed Isai, Pavni and Varun to use a coin to save themselves, they refrained from using it.
Isaivani asked Imman Annachi as to why she's picking on her when she was she was just reiterating that she didn't want to nominate anyone. Later, in a private conversation with Chinna Ponnu and Pavni, she said that Imman Annachi continues to hurt her and she feels that she wants to stop talking to him.