The film focuses on two love stories in Chennai and Tiruchirappalli; one takes place in the period of a day, while the other ensues for months.
Amudha (Ananya), a native village girl from Tiruchi, arrives in Chennai for a job interview, but her sister is unable to meet her to direct her to her destination. Amudha enlists the aid of a stranger Gautham (Sharvanand), who agrees to take her as far as the bus stop. However, he ends up travelling with her the entire day, waiting for her during her interview, and dropping her off at her sister’s home. In the course of the day, she comes to understand him and becomes fond of him. While remaining calm and reserved, Gautham reciprocates her feelings. The following day, Amudha returns to Tiruchi, where she realizes that she has fallen in love with Gautham and rejects marriage proposals that come her way. She decides to return to Chennai to meet him. Meanwhile, Gautham realizes that he has fallen in love with Amudha and decides to go to Tiruchi to find her, despite not knowing her address and other any details except her name.

Tripura, whose dreams turn into reality, is taken to Hyderabad for treatment. She falls in love with and marries her doctor, whom she, one day, dreams of killing.

The movie starts with Raghu (Jai) trying to kill his father for not taking good care of his family. That is when he comes to know that he owns an ancestral property in Kasi which was given as lease almost 100 years ago. At the same time, an IT raid takes place in a minister’s house. The minister hands the laptop having his property detail to his auditor, who demands 5 crores to hand over the laptop. In Kasi, Raghu’s ancestral property is taken care by Seenu (Jiiva), but he is unsuccessful. It is then showed that Seenu and Raghu had been cheated by Ganesh (Shiva). They move to Karaikudi to get hold of Ganesh and get back their money. Meanwhile, the minister starts his journey to get back the laptop. How Raghu and Seenu get back their money and how the minister gets back the laptop forms the rest of the story.

Mano (Bharath) loves Jo (Mallika Kapoor) and becomes her friend, hoping to help her win her love for Prem (Arun Vijay), whom she secretly loves. Then they both try to break Prem’s love with Nandhini (Deepu) and succeed. Mano realizes Jo’s deep love for Prem and tries to unite them. Mano succeeds in making Prem fall in love with Jo. Finally, Jo and Prem get married. During the story, the twists reveal that Mano had originally been in love with Jo but secretly tried to engage into her life by pretending to be in love with Nandhini. Soon after realising her true love for Prem, he sacrifices his love for her and brings Prem and Jo together. Only in the last several scenes does Jo realise Mano’s love for her, but she chooses to go with Prem.

Certain circumstances get an innocent guy into a serious issue involving millions of money and his life turns upside down.

Singaravelan “Velan”, on his birthday, tames a wild bull by just talking to him. He seems to share a special bond with animals as he works in his farm filled with animals. Later that day, his mother, Parvathy, calls him and decides to tell him the truth about his late father. Velan, in his imagination, thinks that his father was killed by four goons (as is the case of many Tamil films then) but soon learns that his father did actually die of a brain illness like he had been told before. But, he had died heartbroken that his marriage with Velan’s mother was not accepted by her sister-in-law and they had broken all links. Further, they believe that it was Parvathy’s curse that killed her brother and sister-in-law in a car accident and they get a promise from the guardian, that their daughter should not be married to Parvathy’s son. Velan’s mother reveals that it is Velan’s duty to get married to her brother’s daughter Sumathi to bring the separated family back together. Armed with only a picture of the girl when she was four, he leaves for Madras to fulfill his mother’s wishes.

When stuntman Sambandham (Kamal Haasan) and Dr. Janaki (Simran) come across each other at his brother Anand’s (Abbas) and her best friend Malathi’s (Sneha) hastily planned wedding ceremony, they instantly develop a dislike for each other. They both have a very low opinion of the opposite sex, and staunchly believe marriage is not the way to go for the two newly-weds, whom they try to discourage from proceeding further.
Janaki convinces Malathi to test out her theory that men are after only one thing, by forcing Malathi to delay their consummation for three months. She is sure Anand will not be able to do so and this will prove to Malathi that Anand is just another low-class male, like all others.

Chulbul Pandey encounters an enemy from his past, and his origin story as the fearless cop unfolds.

Thenali Soman (Kamal Haasan) is a Sri Lankan Tamil who has come to Chennai for psychiatric treatment because of numerous phobias caused by his trauma of the Sri Lankan Civil War. Panchabhootham (Delhi Ganesh) and his assistant (Ramesh Khanna), the doctors treating Thenali, are jealous of a relatively junior doctor Kailash (Jayaram) getting all the media attention. They send Thenali over to him, believing his failure to cure Thenali of his phobias will derail his success. Soon after their first appointment, Kailash heads to his home in Kodaikanal on a vacation with his wife Jalaja (Devayani) and his two children Arjun (Master Suraj) and Aishwarya (Baby Taj Nisha). Kailash tells Thenali to wait until after the vacation before his therapy can begin, but Panchabhootham asks for Thenali to go meet Kailash while on vacation.

Kuselan, a rich man, who has nine children, wants to see them married before his death. Hence, he announces large-scale interviews with the dowry of one crore for the chosen suitors.

Naresh (Allari Naresh) is a happy go lucky youth who enters the guest house of Gopal (Rajendra Prasad) which is possessed by evil spirits. He succeeds in impressing everyone as the fake Swamiji who has all the powers to deal with the evil spirits and collects huge remuneration for his job.