Three women face challenges in their process of getting married. Rajkumar (Dinesh), who is in love with his colleague Kavya (Nivetha Pethuraj), is reluctant to marry her, owing to her superior economic background, so much so that he delays talks of marriage. Lakshmi (Miya) is visited by several suitors, and every one of them is rejected by her father (Nagineedu), whose greediness makes him wait every time for a suitor who is per the family’s status. Bhaskar (Lingesh) agrees to marry Susheela (Riythvika) but gets cold feet and calls off the marriage. The story unfolds, telling how each of the protagonists attempts to fight the dogma of arranged marriage.

In a bid to help his younger brother unite with the girl he loves, Vetrivel and his friends decide to kidnap her. Things take an ugly turn when their plan goes wrong and results in messy situations.

The movie begins with Jeeva (Sathya) being taken to court, where he recalls his past. In 1989, at the beginning of his 12th standard, his friend Balaji (Ananth Nag) falls in love with their classmate Karthika (Miya). Jeeva talks to Karthika but comes to know that she is actually in love with him. The next day, he accepts her love. Jeeva’s father died when he was young, and his mother (Rindhuravi) married again. Once when Jeeva and Karthika are out, they are caught by police, and both their families are informed. Later, when Jeeva goes to apologize to Karthika’s parents, he is hit by her father (Vaidyanathan). Meanwhile, Karthika’s father applies for a transfer. Jeeva and Karthika promise that they will not meet until their last exam. On the last day, Karthika leaves but gives a letter to Balaji and tells him to give it to Jeeva, but Balaji does not give it and tries to convince Jeeva that Karthika does not love him anymore. Jeeva and Karthika try to meet each other but in vain. Finally, Jeeva learns Karthika’s whereabouts, and they finally meet. When he meets her, he lands up in a fight with her friend. He goes to her home and asks her if she still loves him. She says no but later feels she should talk to him and marry him the way he asked her as proof, but fate has other plans. The next day when she meets him, he stabs her before she can say anything and later realizes she is still in love with him. He tries to save her, but she dies in his arms. The scene returns to the present, where Jeeva escapes from the police to find Karthika’s grave, then he jumps off a cliff. The movie ends with Jeeva and Karthika united in heaven and their names written on the bark of the tree by Jeeva when they first met.

In the year 2065, a scientist (Arya) invents a time machine. To prove its capability, he sends it back in time to 2015, programming it to return within forty seconds. However, the machine does not return.
The time machine is seen by three people in 2015 — Elango (Vishnu), a budding entrepreneur whose ideas are rejected by all and who is struggling to maintain his relationship with his rich girlfriend Anu (Miya), who is embarrassed at the fact that Elango is unemployed; Elango’s best friend Pulivetti Arumugam (Karunakaran), a fake astrologer; and an inventor Giridhara Parthasarathy (T. M. Karthik), who makes a living by repairing home appliances. The three of them are involved in an accident and witness the time machine while recovering from the shock. While Parthasarathy decides to keep the time machine for himself, he suffers an electric shock and ends up in a coma, prompting Elango and Arumugam come to steal the time machine from Parthasarathy’s shop. The duo use the time machine to make Arumugam’s astrology practice extremely successful by going back in time and finding things lost by people under the guise of astrology. Elango further uses the machine to impress Anu’s industrialist father Rajarathinam (Jayaprakash) by going to the future, obtaining the stock market results and successfully “predicting” them in front of Rajarathinam and his company’s board of directors. Rajarathinam soon approves the marriage of Anu with Elango.