One Side Love) is a 1980 Indian Tamil-language romantic musical film written by Rajendar and produced by E. M. Ibrahim who is credited for direction.

The film stars Shankar and Roopa, with Raveendar, Chandrasekhar, Kailashnath, Kumari Usha and Thyagu in supporting roles.

The film earned critical acclaim and became a major box office success, running for over a year in theatres.

As a result, people in their locality look down on Subhadra's mother, who supports her children by stitching clothes and is the subject of most gossip sessions.

However, Subhadra concentrates only on studies without getting distracted by other issues as advised by her mother, and maintains a safe distance from other college boys.

Subhadra's male classmates Madhu, Kannan and Thambu tease her in class by narrating the rumours about her mother and gossip about her love for Raja.

[16] Rajender said he wrote the song "Idhu Kuzhandhai Paadum" with the intention of defying the rules of grammar and "mak[ing] a distinctive mark" in his debut film.

[5] Ananda Vikatan rated the film 50 out of 100, appreciating Robert–Rajasekar's cinematography, the songs by Rajendar and score by Raj.

[6] Kanthan of Kalki praised the performances of the cast and Robert–Rajasekar's cinematography and concluded calling the film a touchstone for the fandom of moviegoers.

[10][21] Initial days after the release saw low responses at the box office, but the film eventually picked up and became a success.

[22][23] Oru Thalai Ragam's success led to more films in Tamil based on the theme of one-sided and unexpressed love.