The lives of a few individuals get impacted, both in good and bad ways, by the actions of others who are hardly connected to them.

A village ruffian, who settles disputes in his native, takes on a big shot when he tries to sort out the rough patch in his marriage after several years.

Aadhi and Shivani are children of single-parents who want to enjoy the happiness of a complete family. In order to achieve this, they try to unite their parents but end up in trouble.

As a child, Paari (Atharvaa) lost his father who tried to stop the war between his native and neighboring village as they fought over sharing a pond water. Years later, Paari is a young man who returns from Singapore but the battle between two villages is still on. Mean while, Paari is in love with Thamarai (Anandhi), daughter of rich village man (Lal) who also owns the pond and is adamant not to supply water to the nearby village.

The film is a 4-chapter anthology of 7 couples in one broad backdrop – the first night of marriage.

Priya Amal Raj (Kajol) lost her mother at a very young age. She is friendly, outspoken, sensitive, yet precocious. Priya is brought up by her dad, Amal Raj (Girish Karnad) who is a clothing industrialist. Since her childhood, Priya is interested in singing, music and church.
Thomas Thanga Durai (Arvind Swamy), a polite, well mannered NRI business man, returns to India from America to look after his father’s James Thanga Durai’s (S. P. Balasubrahmanyam) business. Thanga Durai is a former associate in Amal Raj’s business, and now establishes his own business empire in the same vicinity, opposite to Amal Raj’s factory. He boasts of his sons achievements. However, Amal Raj dislikes Thanga Durai’s ill-mannered, clumsy and bizarre antics though Thomas and Priya have known each other in their childhood.
Thomas, happens to meet Priya at her school when he goes to a woman’s hostel to see his aunt, Mother Superior (Arundhati Nag) a nun in that school church. Thomas takes Priya’s help in surprising his aunt with a gift on her birthday. In the process, Thomas falls in love with Priya but is unable to confess his love for her. Priya has been brought up in a convent school and wants to become a nun, much to the horror of Thomas and Priyas father. Meanwhile, Amal Raj tries to pull Priya into wedlock through setting up match making with some suitors like Jaipal (Prakash Raj), David (Ranvir Shah) etc., but he fails to fix an alliance for his daughter. In the midst of this, Thomas’s friend Shiva takes him to hairstylist Deva (Prabhu Deva) who is notorious at changing women’s minds. Deva befriends Priya to change her mind about being a nun.
At one instance, Priya performs singing at a Gala along with Deva’s troupe, which puts the troupe into the limelight of a recording theatre owner. Deva requests Priya to join his aspiring music troop as a singer and help them achieve the group’s aspiration for a film audition and Priya agrees to it. Deva with his musical troupe (Nassar and his group) play tricks to make Priya fall in love with Thomas, but fails to turn Priya’s mind towards Thomas. Instead, Deva himself falls in love with Priya and she reciprocates.
Complications arise when Priya falls in love with Deva instead, and at the same juncture, Thomas confesses his love to Priya and reveals the shocking truth behind Deva’s association with Priya. Torn between the two men, a broken-hearted Priya decides to vow for Nun trainee and fails to fulfill her promise for the group’s music audition. Thomas realises this at the end and sacrifices his love. Thomas and his Aunt convince Priya out of celibacy and marry Deva. Thomas becomes a priest as he naturally leads a life of service to the poor, sacrifice and mental chastity.At the climax, it is shown Deva and Priya get their daughter baptised by Thomas.This is the plot of the story.

A college professor tries to unite his students who lack proper guidance from parents and teachers.

PRV’s family who lives with his two wives and children in Ramnad district.. Also, there is a family who is convinced that PRV’s family only caused the death of his brother. The movie narrates many incidents that happen in the two families.

Middle aged, Sekar (Sathyaraj) is an NRI and he prefers to always travels in Suri’s(Varun) auto, who does all the errands to the former. Prejudging his daughter’s friendship, Sekar arranges for an immediate wedding, which eventually leads to heated arguments in the family. The same day night, Sekar drinks with his close friends at his unused small shop. Once all his friends decide to leave, Sekar insists that Suri get more booze from nearby black-market and on their return, they happen to see a call girl (Anu Mol). Sudden fickleness of Sekar leads to uninvited trouble.

Ashok (Madhavan) and Julie (Sree Devi) have been friends ever since childhood and they don’t share any love interest. Ashok falls in love with Nandini (Jyothika), a rich girl with whom he marries, and although Julie’s closeness to Ashok initially irritates Nandini, she subsequently accepts it. Julie falls in love with a guy called Michael (Vineeth), a cricketer who’s hoping for a place in the Indian criket team and Ashok happens to be his main opponent. When Ashok gets selected, Michael’s father strikes a deal with Ashok that the marriage between his son and Julie will only take place if Ashok steps down and let Michael substitute him, to which Ashok agrees for friendship’s sake. When Michael learns of this at the end, he restores the severed ties between himself and Ashok, and the movie ends upon a happy note.

Shashi Godbole is a homemaker who makes and sells laddoos as a home-run business. Her husband Satish and daughter Sapna take her for granted, mock her poor English skills, and generally treat her with disrespect, making Shashi feel negative and insecure. However, her young son, Sagar loves her as she is, and her mother-in-law offers her words of sympathy.
Shashi’s older sister Manu, who lives in New York, invites Shashi’s family to her daughter Meera’s wedding to Kevin. It is decided that Shashi will go to New York alone five weeks before the wedding to help Manu organize. Her husband and children will join her as the wedding approaches. During her flight to New York, Shashi is given inspirational advice by a fellow passenger (Amitabh Bachchan in Hindi/Ajith Kumar in Tamil). While Shashi is in New York, she has a traumatic experience at a cafe due to her inability to communicate in English. She is comforted by a French chef Laurent who happened to be queuing up behind her at the cafe.
Using the money she made from selling laddoos, Shashi secretly enrolls in a conversational English class that offers to teach the language in four weeks, showing her resourcefulness at navigating an unfamiliar city alone. The class comprises David Fischer, the instructor; Eva, a Mexican nanny; Salman Khan, a Pakistani cab driver; Yu Son, a Chinese hairstylist; Ramamurthy, a Tamil software engineer; Udumbke, a closeted African-Caribbean man; and Laurent. Shashi quickly becomes a promising and committed student, earns everyone’s respect with her charming behavior and her cuisine, and gains self-confidence. Laurent becomes attracted to Shashi. When he tries to kiss her at the rooftop of a building, Shashi rejects him and runs off, but fails to explain that she is married.

Aruljothi is a young pregnant woman. Somehow by the time of her adjunct absence, her unborn toddler is dislodged and abducted from her womb mysteriously.