Trama

Bharani, who lives with his uncle Saravanan, loves Bhanu but cannot marry her as her family and his uncle share an unpleasant history. To win his love, he tries everything to unite the two families.

Saravana Perumal is a rich salt trader and iron businessman living in Thoothukudi. Subbayya, his son Vellathurai and his daughter Sakunthala Devi are from Tirunelveli and are his arch-rivals in business. Bharani Puthiran is Saravanan's nephew and heir, who has completed his graduation and always roams with his irresponsible friends. Bhanumathi is a college student in Bharani's alma mater, who meets and falls in love with him and keeps following him always. Bharani learns that Bhanu is Sakunthala Devi's daughter and suspects her behaviour and hence does not reciprocate her love.

One day, Bhanu goes to meet Bharani on Mullaitivu island, in Sri Lanka and everyone gets arrested by the coastal guards mistaken for prostitution charges, and they later get released by the local police as Bharani is highly influential, but a press reporter writes about this event as he has a vengeance against Sakunthala Devi. This angers Subbayya and he misunderstands that Saravanan was the mastermind behind trapping Bhanu in a prostitution case. Subbayya and his son Vellathurai plan to kill Saravanan, but he escapes. Bharani gets enraged knowing this and goes to kill Vellathurai, but he accidentally chops off the hand of Vellathurai's kindhearted younger brother Selvam. Bharani feels bad about his action.

Saravanan tells the truth to Bharani that Sakunthala Devi is none other than his estranged wife, and Bhanu is his own daughter. Sakunthala Devi didn't like Saravanan's widowed sister and her son Bharani staying with him as she wanted him to lead a nuclear family. This brought up a fight between Saravanan and Sakunthala Devi and she left for her father's place. Bharani realises his mistakes and understands that Bhanu intentionally tried to marry him so that there is a chance for the family to get united again. Bharani meets Bhanu and apologises to her and both get closer again. Bharani eventually plans to get Sakunthala Devi and Saravanan reunited.

Meanwhile, Karmegam, who works for Vellathurai, expresses his interest to marry Sakunthala Devi with the plan of owning all her wealth. Vellathurai agrees without informing the plans for the wedding. Bharani learns about this and rushes to stop the wedding. Sakunthala Devi gets shocked to know her brother's pervert intention to get her married to Karmegam and scolds him. A quarrel erupts and Karmegam seemingly gets killed by Bharani following which Bharani is sent to prison. Sakunthala Devi realises her mistake and finally reunites with Saravanan. After 4 years, Bharani gets released from prison and returns home, to find the wedding arrangements are made between him and Bhanu.

Bharani refuses to marry Bhanu and says that Subbayya and Vellathurai are still angry at him for chopping off Selvam's hand, and Bharani insists that Bhanu marry Selvam instead. Finally, Sakunthala Devi reveals the truth that it was she who killed Karmegam indeed, and Bharani took the blame and was imprisoned so that she can be saved. Subbayya and Vellathurai overhear the conversation and understand Bharani's good nature. Finally, Bharani and Bhanu get married, and the family reunites again.