The plot revolves around the life of a young person. He is content with an elderly man. Things take a new turn as he meets and falls in love with a girl. Their life is affected by a few incidents. Can they get back to the happy life they had?
In 1947, Vinayak Rao tells his 14-year-old son Pandurang about the Goddess of Prosperity. Vinayak explains that the goddess gave birth to 160 million gods, but Hastar was her first and most beloved offspring. However, Hastar was greedy and gluttonous, and wanted all of the goddess’ gold and food for himself. The other gods attacked Hastar, but the goddess saved him on the condition that he could never be worshipped and would be forgotten by history. Vinayak goes on to explain that their people built a shrine that woke up Hastar. Although the village of Tumbbad became plagued with rain, Vinayak’s family was able to benefit from Hastar’s curse provided they were willing to risk venturing into the goddess’ womb in the earth where Hastar dwells.
Kaali (Karthi) is an impulsive and short-tempered working class man who works in an IT company and enjoys playing football during his free time. His best friend is Anbu (Kalaiyarasan), who is a young political aspirant. They along with their gang live in the dilapidated flats of the housing board in Vyasarpadi, North Chennai. In a long-standing bloody feud, two factions of a political party have been laying claim to a wall on which they can paint the portraits of their respective political leaders. Anbu, under the local leader of one of the opposing parties, Maari (Charles Vinoth), is determined to claim that wall for their own party. The other party chief is Kannan (Poster Nandakumar) and his son Perumal (Mime Gopi) who are hell bent in making sure that their opponents efforts go in vain. The painting of Kannan’s father’s face has been on the wall for two decades, since the start of the feud. The two parties and their supporters get into frequent clashes and scrapes. In the meantime, Kaali falls in love with Kalaiarasi (Catherine Tresa), and she too reciprocates his feelings.
Balu (Vijay) comes to the modern city and stays with his friend who claims he has a job. Actually, he is also unemployed. Both of them are tenants of a girl named Sumithra (Sanghavi). First, Balu and Sumithra get into fights, but then their arguments and fights turn into love. Meanwhile, Sumithra’s cousin Mahesh (Karan) is also in love with her. One day, Balu witnesses a thief stealing a necklace, and when he tries to catch him, the thief inserts the necklace in Balu’s pocket, and Balu is blamed for stealing it. Sumithra starts hating Balu. Taking advantage of this situation, Mahesh creates a rift between them by hiring goons to attack them, and he blames Balu for that too. Balu explains his sad story to her grandmother Paattiamma (Nirmalamma) that he lost his mother during small age and could not endure the torture of his stepmother, so he escaped from home. Paatiamma believes him, but Mahesh takes revenge by setting up wires and making her paralyzed. In the hospital, Sumithra overhears Mahesh and his father (Vinu Chakravarthy) wanting to kill her to steal their colony. Balu pays the medical bills and attempts to commit suicide, but Sumithra saves him. Mahesh, who tried to kill him, is killed in a stampede. The film ends with Balu and Sumithra living happily.
Sachein (Vijay), a carefree and happy going guy joins a college in Ooty and falls for Shalini (Genelia) immediately on seeing her in first sight. Shalini studies in the same college as Sachein and is considered a popular and beautiful student, while also being a short tempered and arrogant girl with an upper-middle class status. Sachein comes to know all of this information about her from Arnold aka Ayyasamy (Vadivelu), who is a guy that studies in the college for about nine years and keeps studying there because he thinks that students should give their respect to their college professors, while also informing Sachein, that there are so many boys trying to impress her. This makes Sachein take a different route and he starts mocking Shalini in front of her, which irritates her. Slowly, they both become good friends, after Sachein saved her father in a bike accident. Santhanam (N. Santhanam), who is another student in the college also loves Shalini. But, he feels jealous seeing her and Sachein being good friends and decides to separate them. Santhanam writes in one of the walls of the college, that Sachein loves Shalini and this angers Shalini, as she misunderstands that only Sachein has done it. Shalini shouts at Sachein, but Sachein informs Shalini, that he is so outspoken and does not want to write in the college wall to convey his love, which makes Shalini realize her mistake.
But to her surprise, Sachein informs that, although he has not written it, but the content present on the wall is true which means that he is in love with Shalini. This again angers Shalini and she shouts at him that she considered him only as a good friend and that she wasn’t in love with him. Later, Shalini overhears Sachein challenging Santhanam that Shalini will convey her love within the next thirty days, as their college years will be completed by then. Shalini challenges Sachein that she will never fall in love with him.
Manju (Bipasha Basu) is also from the same college and she likes Sachein. Shalini gets jealous when she spots Sachein and Manju together often. But Manju informs Shalini that Sachein loves Shalini so much and asks her not to hide her feelings, as it is very evident that Shalini too likes Sachein. This makes Shalini realize her love towards Sachein. Sachein comes to know that Shalini’s parents have arranged a wedding for her and he meets Shalini on the last day of their college and says that he has lost the challenge and he will be leaving Ooty tomorrow. But Shalini hides her feelings towards Sachein and she plans to propose her love the next day as she wants to win the challenge by not conveying her love within the 30 days.
On the 31st day, Shalini is excited and goes to propose Sachein. But suddenly, she meets Gowtham (Raghuvaran) on the way, who is Sachein’s father. Gowtham is a billionaire, in which this fact makes the entire college be surprised that Sachein is the only son of a rich business tycoon, as Sachein always stays very simple and down to earth. Now Shalini feels bad, that if she proposes her love towards Sachein at this moment, then he might misunderstand that she decided to marry him after knowing that he is so rich and decides to stay calm. Sachein leaves to the Coimbatore International Airport in Coimbatore and Shalini also follows him. In the airport, Shalini could not control her emotions and proposes to Sachein. She also revealed that it is her ego that didn’t let her convey her love during the last thirty days. Sachein feels so happy and the couple are united.
Kadir (Hemachandran) and Poonkothai (Nandana) are cotton mill workers in southern Tamil Nadu. Their affection grows into love but once the mill closes down following a strike, life gets hard for them and everyone working along with them.
The story of Jamal Malik, an 18 year-old orphan from the slums of Mumbai, who is about to experience the biggest day of his life. With the whole nation watching, he is just one question away from winning a staggering 20 million rupees on India’s Kaun Banega Crorepati? (2000) (Who Wants To Be A Millionaire?) But when the show breaks for the night, police arrest him on suspicion of cheating; how could a street kid know so much? Desperate to prove his innocence, Jamal tells the story of his life in the slum where he and his brother grew up, of their adventures together on the road, of vicious encounters with local gangs, and of Latika, the girl he loved and lost. Each chapter of his story reveals the key to the answer to one of the game show’s questions. Each chapter of Jamal’s increasingly layered story reveals where he learned the answers to the show’s seemingly impossible quizzes.
Sandhyaa Arun(Kajal Aggarwal) is a student who is madly in love with Karthik (Ravi Teja), a techie based in Italy. She decides to travel with him to India, confident that the travel time would be enough for her to get Karthik to fall in love. Karthik reciprocates her gestures in a friendly way, but finally reveals that he is married to Vasudha (Richa Gangopadhyay) but is waiting to seek Divorce. Sandhya comes to know about Karthik’s stint in Subramaniapuram as a football coach and about his affair with Vasudha and that he wants to divorce her because of Incompatibility. She also realizes that despite all that baggage, she still has feelings for Karthik. At this point, Karthik springs a surprise and reveals a shocking bit of information that he is not married and the story he narrated was his friend’s and told it so that it should not repeat in their life as he loved her too. This infuriates her to the core and leaves him breaking in tears. Into this comes in Gautham (Nara Rohith), who is Sandhya’s brother in law and madly in love with her. Based on her Mother’s (Jayasudha) suggestion, she agrees to marry Gautham. Gautham observes that she still loves Karthik and goes to talk with him. After a conversation, he comes to know the Sincerity in Karthik’s love, he lets Sandhya realize it and lets her go to him on their Engagement Day. But all goes vain as Sandhya knows that Karthik left to Ooty leaving her. Finally she too goes to Ooty after 3 months and reunites with him.