Dharmalingam (M.R. Radha), a rich landlord, is the father of two sons and a daughter. His eldest son has a love marriage with a poor teacher's daughter, Kamala,. Dharmalingam disowns them. The son dies and Kamala is left homeless, with a little child. Nathan (M.G.R.), a police officer, gives Kamala shelter in his house and decides to help her fight her case for property. But Kamala is murdered on the way to the court hearing. Fingers point at Dharmalingam and his son Shankar (M.N. Nambiar). Ironically, Shankar and Nathan's sister Uma are in love. Nathan comes to investigate the case and falls in love with Dharmalingam's daughter Sarasu. Now, Nathan is in a dilemma. Should he protect Shankar as he is his sister's sweetheart or should he drop the case as he loves Dharmalingam's daughter. Or is the real murderer someone else?

Alibaba's brother is killed by dacoit Abu Hussain and the body is kept in the cave. Since Alibaba too has the password, Abu visits him as a merchant with 40 barrels, each one hiding one of his men.

Rangan is a servant at the house of Nagalingam, a rich and ruthless man. While he strives to fight against his employer's misdeeds, the latter's sister falls in love with him.

Story about two brother who beat all odds and live happily ever after

Ramu, a secret agent, is given the assignment to catch a terrorist group that sells confidential information to foreigners. He goes to Neela's house undercover to expose the criminals.

Mani is employed as a driver with Marudachalam. Mani and his employer's daughter Susheela fall in love with each other and get married against Marudachalam's wishes. This also enrages Nagu, her father's business partner who intended to marry Susheela. In order to make her marriage successful, Susheela disowns her father and his wealth. Mani, on the other hand, loses his mother after a prolonged illness.

Two fishing communities in a village are pitted against each other by an evil landlord. Problems arise when the leader of one community falls in love with his rival's sister.

Bommi, a princess, falls in love with Veeran, the adopted son of a cobbler, who reciprocates her feelings. However, when her uncle persuades the king to get Bommi married to him, Veeran abducts her.

1963 Tamil film directed by V. N. Reddy

Jeeva decides to protect Kala Devi who joins a circus company after her father's death as she inherits enormous wealth and has a threat to her life.

Together, Gopi and his brother are a power to reckon with. But Dorai, a jealous man, tries to turn them against each other and create the possibility of sibling rivalry.

1966 Tamil film directed by Tapi Chanakya

A rich man decides to take a vacation after working for two years straight. However, upon arrival, he is shocked to find that his caretaker, Krishnaiah, is missing after renting his Shimla bungalow.

'Idhayakkani' is the story of the kind-hearted Mohan (MGR) whose theory of life is 'equality' and who puts it in practice by sharing equally the income of his estate with his labourers. He has another passion - he wants to serve the country - and for that, he has joined the police force as an officer. He meets a needy girl, Lakshmi, and on the advice of and elderly domestic help, he permits her to stay in his house. Tongues start wagging and Mohan decides to marry the girl. However, his happiness is short-lived. He gets the shock of his life when he comes to know that his wife is involved in the murder of a leading scientist. What is the truth? Did Lakshmi murder the scientist or is she innocent. If so, then who is the culprit? How does Mohan go about finding the truth?