Bigg Boss (Tamil TV series) season 9

• On Day 0, when entering the house, housemates were given the option by Vijay Sethupathi to either pick a red (fire) band or a blue (water) band on the stage. When all the housemates entered the house, Bigg Boss announced that housemates with the blue (water) band will be able to stay in the deluxe bedroom of the house in which they will enjoy facilities like a Jacuzzi, high-class shower system. Where else housemates with the red (fire) band will be staying in a common bedroom with only a simple bed area and bathroom.^[28]
• On Day 0, all the housemates came to an agreement to off the supply of the main water tap in the house, hence Bigg Boss announced that there will be no water supply to the house besides the bathroom toilet flush. All the housemates will need to manage with water in a bucket until further notice.
• On Day 2, housemates broke house rules. Hence as a punishment Bigg Boss announced housemates to discuss and swap one deluxe room housemate and a common room housemate to their opposites room. Housemates decided to swap Tushaar from the deluxe to the common room and Viyana from the common room to the deluxe room.

• On Day 1, housemates had to select a co housemate who they didn't really create a connection to with upon their entry into the house and a housemate who is unfit and not worthy to participate in show and paste a sticker on the housemate they select.^[30]
• On Day 1–5, the house's water supply was cut off.^[31]

Story task

• From Day 2: Housemates of the Bigg Boss House shared their past life, their sorrows, strengths, and how they achieved their dreams, with the other housemates. 2 housemates with the best stories will win a nomination free pass in one of the following weeks, and on Day 26 Kalaiyarasan and Kani were announced as winners.^[32]

Captaincy task is divided into 3 tasks.
Task 1

• On Day 3: The task for captaincy was 'Pongudhe Pongudhe'.^[33]

Task 2

• On Day 4: Housemates had only a tiny amount of water to wash some dirty jeans. Aadhirai, Praveen R and Tushaar were the top 3 who completed the task within the time frame.^[34]

Task 3

• On Day 5: Aadhirai, Praveen and Tushaar had to pick a responsibility they will hold until Bigg Boss announced. Aadhirai picked a mask, Praveen picked a uniform and Tushaar picked a scaf to cover his mouth. Until the announcement of Bigg Boss they are not allowed to remove them. Housemates later had to vote and pick who out of the three candidates can perform best at captaincy. Tushaar received most votes and hence was captain for week 2.

• On Day 5, Vinoth and Viyana were sent to jail by housemates due to lack of participation in the weeks activities.

• On Day 11: Bigg Boss revoked Tushaar from his captaincy role since he wasn't able to perform and fulfil the roles of a house captain, hence as a punishment Tushaar lost his captaincy.

• On Day 8: Apsara, Aurora, Diwagar, FJ, Kamrudin, Kemy, Parvathy, Ramya and Sabarinathan were nominated for the second week's eviction process.

Story task

• On Day 8-12: Housemates of the Bigg Boss House shared their past life, their sorrows, strengths, and how they achieved their dreams, with the other housemates. 2 housemates with the best stories will win a nomination free pass in the end of the week.

Mask Task

• On day 9-11: Eighteen face masks of housemates are kept on a rack, and a "safe house" rack with seventeen slots is placed next to the house's activity area door in the garden area. When the buzzer sounds, each housemate must take a housemate's face from that object and place it in any one of those slots. Housemates are not allowed to take a mask with their face on it. They may exchange the mask they have with another, provided they abide by the exchange conditions mentioned in the specific set of rounds. The housemates who advance to the subsequent rounds must return their mask before the next round begins. The housemate whose mask fails to enter the safe house rack at the end of each round will be eliminated from this task. After a housemate is eliminated, one of the slots using the boards marked with an X sign. The number of slots will decrease with each round. The housemate whose mask is placed into the safe house at the end of the final round will win this task and will be saved from Week 3's nomination process and granted safety from eviction.

• Since Kamarudin won the mask task, he was granted a special immunity to be automatically saved from nomination for the following week.

• Kamrudin, Kani and Sabarinathan were selected to participate in the captaincy task, the task features a statue of each of the nominee. When the nominee is not looking at their statue another housemate who is against them can place a knife on their statue. The housemate with the least knife stabs will win captaincy. Kani received the least stabs and was elected house captain for week 3.

• On Day 12: All the housemates had to do a ramp walk dressed in the show's sponsor brand Jeyachandran Textiles where the brand offered all the housemates an outfit to be dressed during the ramp walk show.
• Aadhirai and FJ won the task.

• On Day 12: Aadhirai and Aurora were sent to jail by housemates due to lack of participation in the weeks activities.

• Host Vijay Sethupathi announced to the audience that there will be wildcard housemates entering the house soon.

• On Day 15: Aadhirai, Aurora, Kalaiyarasan, Praveen, Ramya, Subiksha, Tushaar and Viyana were nominated for the third week's eviction process.

Bigg Boss Juice Factory

• On Days 16–19: Housemates will be divided into 3 separate groups. The owners group will need to be able to export the juices to Bigg Boss. The packet boxes will be sent to the owners and the bottle collectors for the juice will be able to clean the bottles and supply the bottles to the owners. If the owners are fulfilled with the quality of the bottles they are able to purchase the bottles and fill their juice in the bottle and paste their brand on the juice. There will be 2 juice judges who will judge the owners juice base on appearance, taste and quality. If the juices are approved they earn a point.
• Diwagar and Parvathy were appointed as the Quality Control judges for this task.

• Since Subiksha received the most coins and eventually won the task, she was granted nomination free-pass from 4th weeks eviction process. On the supplier team from the common bedroom team Praveen received most coins hence he was also granted nomination free-pass from 4th weeks eviction process

Dazller Glow Challenge

• On Day 19: Housemates had to get into 3 groups of 4 and the remaining 3 housemates will be the judges. Housemates will need to apply the Dazller products and perform an advertisement kind modelling shoot and a ramp walk along the stage. 1 member from each group will need to talk about the type of make-up look is performed on the members.
• Kalaiarasan, Kani and Ramya were appointed as the judges for the challenge.
• Aurora, FJ, Vikram and Vinoth won the challenge.

• On Day 19: Parvathy and Kamrudin were sent to jail by housemates due to lack of participation in the weeks activities.

• On Day 22, Bigg Boss announced to Praveen that since he became the house captain and have the power of nomination free pass which he received in the Bigg Boss Juice Factory task. That he can only select 1 of these 2 options while the unchosen option will be passed on to someone of Praveen's choice. Hence Praveen chose to remain as the house captain for the week and granted the nomination free pass power to Kani.
• On Day 22, Bigg Boss announced that all housemates will need to pack all their belongings which include clothes (except undergarments), make-up, hair products, soap, toothpaste and brush and accessories. And packed up in a luggage and left in the store room, housemates were then given a Bigg Boss uniform as a punishment.

• On Day 22: Aurora, Kamrudin, Kalaiyarasan, Parvathy and Vinoth were nominated for the fourth week's eviction process.

• Kani, Praveen and Vikram were selected to participate in the captaincy task, the task features a ski board with velcro shoes attached to the board. Nominees should attach their feet on the velcro and start walking around, however they can't sit or stand still on the board. The nominee who survives the longest on the board and eliminating their co nominees will become captain of the week. Praveen was the last nominee standing and hence was elected house captain for week 4.

• On Day 22, Team deluxe room and Bigg Boss common room housemates will split into 2 of their respective teams. In each team there should be 7 housemates and both teams should play their games at the same time. There is a total of 5 rounds, on the TV there will be a symbol shown to the housemates and housemates on both teams will need to recreate the symbols on the floor. If the team who creates the symbol within the time frame and most accurately depicted will earn a point. If team deluxe wins the house won't go through a swap, however if the common room wins the house will go through a swap. Praveen was the judge of the task.

• Team Common Room won the task. Hence there will be house swap.

• On Days 23–26, Housemates will participate in activities to win back their belongings which have been taken by Bigg Boss. Housemates will be divided into their respective teams of common room and deluxe room. The team which win most activities each round will be able to take certain belongings from the locker.
• Deluxe team won activity 1
• Common team won activity 2
• Common team won activity 3

• On Day 29, instead of the normal nomination process which is held private in the confession room. Bigg Boss asked the housemates to openly announce their nomination votes in an "open nomination".
• On Days 34 & 35, there were double evictions.

• On Day 29: Diwagar, FJ, Kamrudin, Kemy, Parvathy, Praveen, Ramya, Sabarinathan, Tushaar, Vikram, Vinoth and Viyana were nominated for the fifth week's eviction process.

• Bigg Boss announced that in this captaincy task the wildcard housemates will only be participating which include Amit, Divya, Prajean and Sandra. The task includes a hoop next to them with a rope attached to it and they will need to reach out to the middle where a ball is placed, the first nominee to pull the ball to their square in front of them wins the captaincy.
• Divya won the task.

• On Day 30, housemates take roles as hotel staff and will accommodate guests sent by Bigg Boss who are previous season housemates. Bigg Boss selected the candidates for the roles of the manager, chefs, room service, and housekeepers to look after the customers visiting the hotel.

• On Day 31, Priyanka checked out of the hotel due to some circumstances and re checked in on Day 31 Night.

• On Day 33, housemates participated in the healthy grocer perugayam task. The task requires housemates to choose a co housemate who they have developed a strong connection and bond too in the house.

• On Day 36: Aurora, Divya, Diwagar, Kani, Parvathy, Ramya, Sandra, Subiksha, Vikram and Viyana were nominated for the sixth week's eviction process.

• On Day 36, the captaincy task took place with Divya, Parvathy and Sabarinathan as the nominees in the garden area. The task's layout is that there will be 4 cones in a squared box in the middle and nominees will have a box of their own in a distance where they are stood and once the buzzer goes they must run to take the cones that is in the middle box. However, if another nominee has taken the cones and placed it in their box they can run straight to their co nominees box and try to take one. The nominee with the most cones at the final buzzer wins the captaincy. Sabarinathan received most cones at the final buzzer hence he became the captain for the sixth week.

• On Days 37-40, the housemates will be in a royal kingdom. Hence they themselves will also occupy roles of royals. Housemates will divide into 2 separate kingdom and will have a rivalry among themselves. Each kingdom will have a raja and other royal roles.

Gaana Samrajiyam

Tharpees Samrajiyam

• On Day 39, Bigg Boss assigned housemates to select three judges among them and let the judges rank all of the housemates from 1 to 14, based on how mature they believe they have been throughout Weeks 1 to 6.

• Judges: Amit, Kani and Vikram
• FJ, Parvathy and Diwagar who were ranked in 12th, 13th and 14th positions respectively were sent to the Bigg Boss Jail following Bigg Boss's announcement.

• On Day 43, Bigg Boss conducted a Freeze Nomination. this resulted in the housemates announcing their nomination in public without being allowed to move while announcing their nomination.

• On Day 43, Amit, Aurora, Divya, Kani, Kemy, Parvathy, Prajean, Ramya, Sabarinathan, Sandra, Subiksha, Vikram and Viyana were nominated for the seventh week's eviction process.

• Nominees will need to be attached to a board and only have 4 grips on the board for support. If all the grips are taken away from them they will be eliminated, however their co housemates who are not in the task will remove a grip from them with who they feel won't be suitable for a captain. FJ had the least grips removed hence he won the captaincy task.

• On Days 44-46, the housemates will be divided into 3 teams, Kitchen team (sambar squad), cleaning team (mop maayavi's) and washroom team (flush fighters).
• Kitchen Team: They required to cook and clean after their vessels after done and which ever housemates desire any type of meal and drinks members within that team will need to do that dish they will need to entertain housemates while they are eating their meals.
• Cleaning Team: This team will need to entertain housemates while they are cleaning the house and bedrooms.
• Washroom Team: Whichever housemate desires to go to the washroom they are required to ring a bell on the desk of the leader of washroom fighters and then they will be greeted by a red carpet to the washroom area and entertain housemates while in the washroom area.

• Each team will be awarded scores based on their performance and the team with the most points win and will be given an opportunity for all the housemates in the team for participate in the following week's captaincy task.

• On Day 49, nominated housemates Kemy and Prajean who were in the eviction hot seat were given a Maruti Suzuki car each for them to get into and both cars will leave the house, however only one car with the saved housemate will return to the house while the other won't return.

• On Day 50, the initial nomination included Amit, Aurora, Divya, FJ, Kamrudin, Kani, Parvathy, Prajean, Ramya, Sandra, Vikram and Viyana were nominated for the eighth week's eviction process.

• Nominees are required to balance all 5 rounds of tubes without falling it in a minimum time.

Set 1- Vikram and Subiksha
Set 2- Kamrudin
Set 3- Prajean and FJ

• FJ finished in balancing all rounds of tubes in minimum time, so he was exempt for this week eviction.

• On Days 51-54, all the housemates will turn into school students, teachers and wardens. The Bigg Boss house will turn into a residential school where housemates will learn and also stay in their respective roles.

• For the captaincy task, Bigg Boss directly nominated Aadhirai as a nominee to participate in the task.

• On Day 57, Amit, Divya, FJ, Kamrudin, Kani, Parvathy, Prajean, Sandra, Subiksha, Vikram and Vinoth were nominated for the ninth week's eviction process.

• Initial nominees included Prajean and Ramya. However, Bigg Boss also selected Aadhirai to participate in the task since she has re entered the house.
• On Day 57, the captaincy task was conducted with the rules being that in front of the 3 nominees there will be a long table and a bin on the other end of the table, each nominee will have 15 bricks and 3 soft balls. Once the buzzer is pushed the nominees will need to place the bricks on the table in a domino pattern manner and a ball at the very end, the nominee will then push the first brick and eventually making all the bricks fall over and making the ball fall in the bin, the nominee who does this task first will win captaincy for the week.

• On Day 57, housemates must divide into 2 groups of males and females. They must debate on which gender is it male or female who performs and does a better job at household duties such as cooking, cleaning and washing. There will be 2 judges who will make the verdict of which gender's debate is more powerful.

• Kamrudin and Aurora were appointed as judges.

• On Days 69 and 70, there were double evictions.

• On Day 64, FJ, Kamrudin, Ramya, Sabarinathan, Sandra, Vinoth and Viyana were nominated for the tenth week's eviction process.

• On Day 64, members of the winning team from the previous week task participated in the captaincy task, Kani, Aurora, Divya, Subhiksha, Aadhirai and Amit. Each nominee would be blindfolded and the task will take place in the activity area. The nominees must find a ball while blindfolded and must sit on it when the buzzer goes off. The one who does not have a ball in each round would be disqualified. Amit Bhargav won the task and won captaincy. Sabari was the judge for the task.

Housemates took part in Healthy Grocer Perungayam task.

• On Day 71, Instead of the normal nomination process which is held private in the confession room. Bigg Boss asked the housemates to openly announce their nomination votes in garden area and apply paint on the cheeks in an "open nomination".
• On Day 75, The weekly task winning team Emmadi Aathadi Nadanakulu decided Aadhirai's family to stay in Bigg Boss house for 24 hours.

• On Day 71, Amit, Aurora, Divya, FJ, Kamrudin, Kani, Parvathy, Sandra, Subiksha, Sabarinathan and Aadhirai were nominated for the eleventh week's eviction process.

• Nominees Aadhirai, Amit, Aurora, Parvathy, Subiksha and Vinoth participated in the captaincy task. The task was for each nominee they can select a housemate to assist them will they complete the task, the nominees will be on a wooden roller while their assisting housemate will use their legs in the air to coordinate their direction. The nominees will on the floor with a basket to collect all the balls. The nominee with the highest amount of balls wins the task. Vinoth won the task and won captaincy.

• On Days 71-74, housemates will be divided into 3 groups of 4-5 members. Bigg Boss will give the groups a set of task rounds in which they will dance to music randomly played. The team who scores the highest amount of points from all rounds will be able to participate in the following week captaincy task.

• On Day 76, housemates were given 2 different type of washing liquids from Surf Excel and they need to explain how the 2 liquids work.

• In week 11, Aadhirai was given the special power of being able to have her family in the house for 24 hours. However since she got evicted she gave that power to Parvathy, hence Parvathy's family was able to stay in the Bigg Boss house for 24 hours.
• During the freeze and release task, housemates must complete a task in order to see their family members. If the longer it takes for them to complete the task the shorter duration time spent with the family.

• On Day 78, Amit, Aurora, Divya, Kani, Parvathy, Sabarinathan, Sandra, Subiksha, Vikram and Vinoth were nominated for the twelfth week's eviction process.

• Nominees Aadhirai, Kamrudin, Kani and Parvathy were given a captaincy task since they were selected as the best performers for the dance marathon 2.0 task. The captaincy task included each nominee having 4 balloons attached to their legs and they are responsible for saving their own balloon from being damaged by their co nominees. The nominees are also allowed to pick a co housemate to help and protect them from getting their balloons damaged. In the task Kamrudin was the last nominee with one balloon left that was undamaged and he won the captaincy task.

• From days 78-82, housemates will be able to reunite with their family back in the house. When Bigg Boss announced "freeze" housemates will need to immediately stop what they are doing and stay in the exact same position and during this time their family will enter the house. After a few seconds Bigg Boss will announce "release" and housemates can then interact with their family.

• On Day 81, Housemates took part in Roff Tiles task.

• On Day 85, Bigg Boss conducted an open-nomination allowing housemates to nominate a housemate to evict openly.
• Bigg Boss announced there will no longer be any house captain's for the remainder of the season.
• On day 90, host Vijay Sethupathi told there are no more warnings for any housemates as Parvathy and Kamrudin were speaking bad words and violence behaviour with their co-housemates so first time in this season the host announced that Parvathy and Kamrudin are given red card, so they both are ejected from the show.

• On Day 85, Aurora, Divya, Kamrudin, Parvathy, Sabarinathan, Sandra, Subiksha, Vikram and Vinoth were nominated for the Thirteenth week's eviction process.

• From days 85-89, the top 9 housemates will participate in a series of tasks to gain their position in the finale and get the immunity to become a direct finalist. The housemate with the most amount of points at the end of all the task will win TTF and become the first direct finalist of the season.

• On Day 92, Contestants are called individually to the confession room asked to eat chillies to save fellow nominated contestants,since it is 14th week, Bigg Boss announced the result that no one will be saved from the eviction process.

• On Day 92, Divya, Sabarinathan, Sandra, Vikram and Vinoth were nominated for the fourteenth week's eviction process.

• From days 92-95, housemates will be given different tasks in order to collect as much of money they can for the money box sent inside the house, each round Bigg Boss will give a set of tasks which will allow housemates to increase the value of the box. If at any cost of the task one housemate decides to take the box they have to leave the Bigg Boss house and will be evicted with the amount of cash in the cash box at that time.

• Instead of the usual 5 finalist, this season only allowed 4 finalist to compete in the finale week.

• On Day 99, Aurora, Divya, Sabarinathan and Vikram were nominated for the finale voting process.

• On Day 100, Bigg Boss asked the four finalist to present a winner speech on what they will say to the audience if they win the season. Each finalist will need to come in front of the living area and present their speech to all their co-finalist and evicted housemates.

• On Day 100, the finalist and the returned housemates had to do a sponsor task for Colgate toothpaste. The task featured all the female housemates to do an advertisement for the brand while the male housemates take a photo of them. The duo with the best advertisement dialogue and photography skills wins the Colgate toothpaste package.
• Apsara and Sabarinathan won the task.