Major Mahadevan (Mohanlal) is an officer deputed to the National Security Guards (NSG). He has been assigned to counter-terrorism duties in Kashmir and commands an elite group of NSG commandos. He calls back his buddy Havildar Jaikumar (Jiiva) from his honeymoon because he has information about major activities of the militants; he feels Jaikumar is needed for the team. The commandos raid a mosque in civilian dress and seize a big collection of arms and explosives. Later, during an operation focused on some cottages near the Dal Lake, a commando in the team is killed and an outraged Jaikumar shoots down a captured terrorist who challenges the commandos. A human rights activist (Shwetha Menon) learns about this and threatens to file a complaint with the government. She later understands the situation and the sincerity of the commandos and decides not to proceed with the complaint.

Jyothi Lingam (Mahesh) is a bright student and son of a mason who leads a happy life in his village near Tirunelveli. One day tragedy strikes as his father, the only earning member of the family, dies in an accident while crossing an unmanned railway gate. Mahesh now has to look after his mother and two sisters. Due to circumstances, he is forced to abandon his studies, even though he comes first in his school in the board exams. Through a canvassing agent, he and his friend Marimuthu, get jobs as sales boys in a textile showroom in Ranganathan Street in Chennai. Mahesh, along with hundreds of others, are employed at the Senthil Murugan Stores run by the big Annachi. On each floor at the textile showroom, there are around 50 to 60 sales boys and girls who work in pitiable conditions from early in the morning to late night, without any rest. He meets Kani (Anjali), a fiery independent girl.

The film revolves around Krishna (Jai), who works in an IT company. He has three friends: Ramesh (Karunakaran), a bank cashier; Moideen (Kaali Venkat), an auto driver; and Souwmya (Naveen George Thomas), a call center executive. Krishna goes on a vacation with his colleagues, where he falls in love with his colleague Divya (Pranitha). Everything goes fine in the initial few days, and their love life is a bliss. One day, Divya breaks up with Krishna, citing a reason she is going to marry someone else. Krishna gets depressed and consults a psychiatrist Muthu Vinayagam (Thambi Ramaiah). Muthu advises Krishna to get in touch with his friends whenever he feels depressed. Krishna reaches out to his three friends, who turn out to be busy with their personal lives. Krishna gets dejected, rents a lodge, and gets drunk. He calls up his friends and threatens them that he is about to commit suicide. Realizing their friend is in serious trouble, they immediately act upon to reach out to him. As they are unaware of his location, they are not able to find him. During the search process, all three of them get into various troubles for no fault of their own. Will they be able to reach out to their friend and stop his suicide constitutes the rest of the story.

The plot is based on the life of an existing revolutionary who has and is still fighting against social issues.

Pariyerum Perumal narrates the story of a youth hailing from Puliyankulam village near Tirunelveli. Pariyan (Kathir) belongs to an oppressed caste. The movie begins with the brutal murder of his beloved black dog ‘Karuppi’ (Lit. Blackie in Tamil). The canine hunting companion of Pariyan is the first one we see becoming a victim of caste hegemony.
Pariyan moves on to secure a seat in a law college, where he wishes to become a lawyer like B. R. Ambedkar. He meets Jothi Mahalakshmi alias Jo (Anandhi), a naive girl from Ambasamudram who takes it upon herself to teach English to Pariyan. She eventually falls for his innocence and honesty. This newfound friendship irks Sankaralingam (Lingesh), a fellow law student and Jo’s cousin. He awaits a chance to teach a lesson to Pariyan and establish his caste superiority. He does so while the blissfully unaware Jo invites Pariyan to a family wedding.

Murali moves into a house for rent, which is owned by Sumathi’s father. Murali falls in love with Sumathi and befriends Selvi, who is the house-maid’s daughter whose help he seeks to win over Sumathi.

A young couple fall in love and move in together, but a complication results in them breaking up and facing each other in court.

It involves culture of Kambala and Bhootha Kola. A human and nature conflict where Shiva is a rebel who defends his village and nature. A death leads to war between villagers and evil forces. Will he be able to regain peace in the village?

A 14-year-old forlorn Kalyani delivers a boy in seclusion, fearing societal backlash and incapacity. She abandons him, heavy-hearted, placing him inside a moving goods train, which a slum dweller finds. The slum procures him as their common child, naming him Surya and they collectively raise him honest. He grows up, intolerant of injustice especially to the poor, though he wonders why his biological mother had impetuously abandoned him. A yellow shawl was the only identity he had of his mother, which she had placed him in when casting him away.
Devaraj, a powerful don who is kind yet feared by most in the society, also fights injustice, but by violent means. Ramana, an auxiliary of Devaraj’s, whose abusive demeanour led Surya to attack him, succumbs to his death. Surya gets apprehended for this. An exasperated Devaraj soon perceives Ramana’s felony, realises Surya’s cause was genuine and bails him out. Thus, Surya and Devaraj get to understand each other as both share similar social ideologies despite getting off on the wrong foot. Devaraj declares Surya his “Thalapathi”, a best friend.

A fraudster gets to fulfill his childhood dream of being a superhero when he takes on a ruthless businessman whose business strategy is to crush the dreams of children.

After jinxed romantic affair, a brilliant man with his friend plans to steal from his landlady. After pulling the theft successfully, he is shocked by strange coincidences of happenings in his family and the landlady.

Two juvenile convicts escape from prison – one for revenge and the other for romance. With a ruthless warden determined to catch them, do they succeed?