In a tragic accident, Kathiravan loses his wife and his left leg. A few years later he decides to get a prosthetic leg with the compensation amount. Kathiravan’s life gets more complicated when his daughter Magizh gets hospitalized.
Rishi (Prabhas) is the son of Bhupathi (Krishnam Raju). Rishi is influenced by his father’s ideals and grows up just like him. Bhupathi does not want his son to take up violence and sends him to Bangalore for studies and to learn music. There, Rishi falls for an orphan Deepali (Deeksha Seth) and brings her to his house. During the festivals held in their village, Simhadri (Pradeep Rawat) sends thugs to kill Bhupathi and his family, but Rishi eliminates all the thugs. Bhupathi’s brother Jairam (Mukesh Rishi) joins hands with Simhadri so they can kill Bhupathi, Bhupathi’s wife Lakshmi (Rama Prabha), and Deepali. Simhadri tells Rishi that a local goon helped Jairam kill Bhupathi and his family. Simhadri soon kills himself. Some of Bhupathi’s bodyguards are still alive, including Raju (Supreeth). They assist Rishi to get revenge. Two years later, Rishi discovers that a goon named Stephen (K. C. Shankar) was doing illegal business in Hyderabad for a very long time.
Karky (Pa. Vijay) is the son of Arokkyasami (Nassar), who wants to win freedom of his people from the shipbuilding owner Rajanayagam (Suman) and his wife Sena (Namitha). Meera (Meera Jasmine) is Rajanayagam’s sister. She is a very kindhearted woman who helps Karky. With Meera’s help, Karky starts a war against Rajanayagam. Rajayanagam is not only cruel and stone-hearted, but also very cunning and a big fraud. He and his wife play a cunning game and cheat Karky. Karky’s mother Valliammai (Kushboo) is initially reluctant to wage war against evil openly as she is afraid of bloodshed. She wanted all workers to live and not die. Rajanayagam crosses all the levels of cruelty. There is no way the situation can be handled peacefully, so Valliammai asks Karky to open a full-fledged war against evil. Then the final war starts between good and evil in which good wins over evil.
Thirumalai (Nasser) owns a provision store in a village and lives with his family comprising his wife (Saranya Ponvannan), brother-in-law Karupatti Ayyakannu (Vadivelu), son Krishnan (Bharath) and a daughter. Thirumalai is very strict, short tempered and is referred as “Emden” by his relatives. Krishnan studies poultry science in a college and also assists his father in managing the store. Krishnan worries about his father’s rude behaviour towards him.
Divya (Gajala) is Krishnan’s classmate and she is also the daughter of the auditor who manages Thirumalai’s accounts. Divya proposes to Krishnan, who does not reciprocate as he loves his maternal uncle’s (Shanmugarajan) daughter, Janani (Gopika). But enmity prevails between Thirumalai and his in laws’ family. Krishnan lives with the hope that the two families will unite someday paving the way for his wedding.
Kadhal Mudichu is a tribute to yesteryear actresses now forgotten by the media and the masses. In the film Akbar Ahmed (Prithviraj) is a highly successful director who wants base his next film on the life of yesteryear actress Malavika (Priyamani). While tracing her whereabouts he finds her diaries which show her whirlwind romance, marriage and consequent break up and its affect on her career. Akbars effors to find Malavika form the plot of the film.
Vijay Kumar (Vijay) is an honest and sincere DCP of Chennai. He takes up a case involving the rape and subsequent death of an IT employee Raji. He finds out that the rapist is Ashwin, the son of Labour Minister Vanamaamalai (J. Mahendran). Vijay kills Ashwin and reveals himself as the murderer to Vanamaamalai, who swears to take revenge on him for killing his son. Meanwhile, Vijay falls in love with a medical student Mithra (Samantha Ruth Prabhu) and both eventually get married and lead a happy life. But, Vijay’s happiness is short-lived as Vanamaamalai, his younger brother Ratnam (Azhagam Perumal) and their henchmen barge into his house one night and kill Mithra and Vijay’s mother (Raadhika). They even brutally assault Vijay and attempt to drown Vijay’s baby daughter Niveditha aka Nivi in the bathtub. The dying Mithra manages to rescue Nivi and asks Vijay to take care of her, but not before making him promise that he will quit the police and be a peaceful and loving father to Nivi, following which she dies in Vijay’s arms. Vijay fakes his death, changes his name to Joseph Kuruvilla, maintains a low profile and moves to Kerala with Nivi and his constable friend Rajendran (Rajendran) to protect Nivi from Vanamaamalai and his gang.
Kombaya Pandian (Karthi) is a butcher by profession and he leads his life by virtues. If anyone ill-treats women or cheats in business, Komban would certainly whack them for which he is celebrated by the Aapanadu village people. At one point of time, Komban falls in love with Palani (Lakshmi Menon) and her father Muthiah (Rajkiran) too agrees for the marriage. But somehow Komban does not like Muthiah. Meanwhile, few guys badly want to murder both Komban and Muthiah. Whether Komban can save his wife and father in law from the deadly guys ?
James Vasanthan (Madhavan) and his three friends Ganeshan (Charle), Charles (Vaiyapuri), and Mohan (Venu Madhav), have a music troupe that sings at weddings. They are tenants of Subramani (Manivannan) whose daughter Lakshmi (Sneha) shares a good rapport with the youths, helping them in their time of need. Her encouragement puts a new zeal in James, who soon gains recognition as a singer. Not that this brings any change in the group’s lifestyle, for J. Suresh still shows them as strugglers. James finally proposes to Lakshmi who rejects him, as she has her past to reckon with. She is a divorcee, her husband having abandoned her soon after marriage for his girlfriend. When Lakshmi’s friend and neighbour Seetha (Aswini) puts some sense into her, she decides to make amends. Incidentally, Seetha had been hovering in the background doing almost nothing until she gets this scene to justify her presence in the film. But misunderstandings pile up between the lovers – the situations are all forced here – until J. Suresh leads the story to a desired happy ending.
Following the corruption in the higher echelons of the government, stashing of black money abroad by Indians, corruption in the Directorate of Vigilance and Anti-Corruption and travails of Indian fishermen and the Sri Lankan ethnic conflict.
Aegan’s story is based around Shiva (Ajith Kumar), a CB-CID officer, and his efforts to foil the terrorist John Chinnappa (Suman). Shiva is simultaneously attempting to mend relations with his father’s estranged first wife and his half-brother Narain (Navdeep). Complications ensue.
John is a scientist who had created tablets by operating on human guinea pigs. His ploys have always been controversial but inconclusive due to lack of witnesses. However, an ex-gang member General Ram Prasad (Devan) became a police approver and is on the verge of revealing John’s ploys to the police. However, he is on the run to avoid charges. The case falls to Commissioner Karthikeyan (Nassar), Shiva’s father, who assigns his son to go and help solve the mission.