Little Brother) is a 1991 Indian Tamil-language romantic musical drama film written and directed by P. Vasu.

The film stars Prabhu as the titular character, an uneducated village simpleton and Khushbu as Nandini, a homeschooled wealthy girl.

Manorama, Radha Ravi, Uday Prakash, Rajeshkumar, and Goundamani play supporting roles.

The film starts with the birth of a baby girl, Nandini, in a rich family on outskirts of Erode.

At the age of five, an astrologer predicts that Nandini will bring much happiness to the family, but she will marry a person of her choice and not of her brothers' choosing.

Meanwhile, the boy who sang, Chinna Thambi, grows up to be a naïve and gullible simpleton with a heart of gold.

Impressed with Thambi's naivete and fighting skills, the brothers hire him to be Nandini's bodyguard and butler.

Thambi overhears the plot, and in a desperate attempt to save Nandini, lunges at her and inadvertently feels her up in public.

Thambi comes back to work and is given a higher level of respect by the brothers for saving Nandini's life.

Her change in behaviour is noticed by her sisters-in-law, who urge the brothers to get Nandini married off before she brings shame to the family.

P. Vasu's son Sakthi made his screen debut as a child artist at the age of seven with this film, appearing as the younger version of Prabhu's character.

[9] The song "Nee Engey En Anbe" is set to the Carnatic raga Keeravani,[10] as is "Poovoma Oorgolam".

[27][28] The success of the film also led the director, actor and actress to collaborate in another project Kizhakku Karai (1991) the following year.

[29] After the release, Vasu was conferred "Navarasa Director" award by Amudha Surabhi Kalai Mandram, Madurai.

[31] Prabhu recalled, "People still talk about Chinna Thambi [...] I still remember my father’s words after the show.