Sekhar and Muthuraman are duped by a conman who promises to give them visas to fly to Dubai. Realising that their families might get hurt, they decide to exchange their addresses.

Jayakumar -‘JK’ in short, is that typical young man of this generation who cares more for worldly pleasures such as girls and parties, has scant respect for his family and spends most of ..

The film deals with the social stigma associated with a handicapped girl in a rural milieu. Murali is a potter by profession. He has a sister, who is born dumb. Murali has to struggle a lot as the handicraft industry is a dying industry and a good amount of money is taken away by his father (Manivannan), who is a drunkard and a gambler. But, he tries to hide his sorrows by having fun with his sister and servant (Vadivelu), who is also his trusted friend. He is in love with his neighbour (Meena), a weaver. He wants to get his sister married to a noble man. But many reject her as she is dumb. Finally, one man agrees to marry his sister but on condition that Muralimust offer dowry. Murali then sells many things dearer to him to get money for the dowry. But, that money is taken away by his father and the marriage falls through. Yet Vadivelu offers to marry his sister without asking dowry and Murali goes home along with Vadiveluto convey this happy news to his sister. But it was too late as the sister commits suicide. Murali as a penance decides to marry a handicapped girl.

In 1970, a marine engineer Lenin (Cheran) from Calcutta comes across a Nagore girl Nadira (Padmapriya). Started with friendship, later seeded with love, Lenin mails a letter once a month. When Lenin came to Nagore, he was disappointed and sad as Nadira and her family left the place after selling their home. Years later, Mahesh (Aryan Rajesh), son of Lenin, found his father’s hidden life from reading his diary. With help from his friend Shamsudeen (Ajai.R), He marches his way to find Nadira and deliver the letter to her. He comes to know that Nadira has shifted to Malaysia after marriage. He goes to Malaysia to meet her. Once he reaches her house, he is greeted by Nadira’s son who welcomes him to the house. Nadira is now very old and asks Mahesh as to who he is and how does he know her? He replies saying he is Lenin’s son and also informs her that his father died few years back. Nadira is grief-stricken. Mahesh gives her Lenin’s last few letters which he could not post because he did not have Nadira’s address. In those letters, Lenin has spoken about his journey to find Nadira after she and her family shifted from Nagore. He describes his pain and grief over not knowing about her situation during those days, and also about his father who coaxed him to marry another girl (played by Anupama Kumar), who is now his wife and is very understanding. Nadira then drops Mahesh to the airport and while on the way she request him to let her talk to his mother. Nadira and Mahesh’s mother exchange good notes and then she finally drops him to the airport. While coming back, she is talking to her herself as well as to Lenin saying that she showed her anguish and punished her father by denying to marry anyone. She currently lives with her sister and her lovable family and apologises and promises Lenin that she will join him soon and never separate.

Kumar (Cheran) is a young man who comes from Thiruvannamalai to Chennai with dreams and hopes about the future. He gets a job in a men’s beauty parlor in Chennai. Every day, he observes and learns more about life in the city. He starts to dream and build castles in the air.
Maheswari (Navya Nair) works in another beauty parlor and also has desires of her own.
The rest of the story is about what happens to these two people. This three hour-long film has similar themes compared to Cheran’s previous films. The key message in this movie is that each person’s life is in his or her own hands.

Rajkiran returns to his ancestral village after almost two decades only to find his house in a dilapidated state. While living in a neighbor’s house, he approaches an engineer to rebuild his house. Arun Vijay, son of an architect Vijayakumar is an architect himself who specializes in traditional building techniques. He agrees to rebuild their house of their liking. As the construction work progresses, Arun Vijay gets closer to Rajkiran and his family members. He befriends Shamitha, Rajkiran’s niece and eventually falls in love with her. When Rajkiran comes to know of this, he reveals the tragic past of his family which forced them out of their own village years ago.

The romantic story begins with Senthil (Cheran) setting off on a journey, to invite his friends and family for his forthcoming wedding. Along the way, he encounters various individuals from his past, who bring back memories of three women that have influenced his love life.
The movie begins with Senthil, who runs an advertising agency, boarding a train to visit his native village to invite all his friends for his wedding. During the journey he reminisces his teenage days. The happenings in the school, his tussle with his friends and his first love with his classmate, Kamala (Mallika), are all pictured with fun and drama. However he father married her off early before her 11th grade. He meets Kamala after 15 years and she is now a pregnant mother of 3 born children. Senthil reaches the village and invites all including Kamala, who promises to come to the wedding.

Jayakumar (Sharwanand), commonly known as JK, is a mid-20s man who does not care about family. Instead, he is obsessed with chatting on Facebook, partying, and passing time with friends. At work, he has a group of friends with similar interests. They all plan on going for a New Year Party.

Two years later, JK is shown to be a changed person – very invested in developing, earning money and taking care of his family. He is shown to make business models with an aim of earning a lot of money in a short period of time. He has goals such as getting his two sisters married and ensuring that his brother gets good education. In attempts to start business, he goes to meet a bank manager at his home. As they had to wait for the bank manager to come, JK and his friend notice that the house is not well-maintained and take on the job to organise it. Upon returning, bank manager appreciates their work and tells JK and his friend that it would be very helpful if they could help clean homes regularly. He also suggests that about 150 other flats in his apartment complex would also appreciate this service. This becomes JK’s first business venture. For this, he also ropes in help from his school friend Nithya (Nithya Menen). Together, JK, Nithya, and their friends go on to become very successful with multiple projects.

Very much concerned about his family’s financial status, Arivudainambi is unhappy with the way his sister’s wedding to a wealthy man is being done.