Unnodu Ka is a 2016 Indian Tamil-language romantic comedy film directed by RK and produced by Abirami Ramanathan. The film features stars Aari Arujunan and Maya in the leading roles, while Prabhu plays a supporting role. Featuring music composed by C. Sathya, the film began production in January 2016.

Aari Arujunan is an Indian actor who has appeared in Tamil language films. He made his lead debut in Rettaisuzhi (2010) produced by director Shankar, before having a breakthrough performance as Murugan in Nedunchaalai (2014) and starring in the supernatural thriller Maya. In 2021, he emerged as the title winner of the Tamil reality television show Bigg Boss Tamil Season 4.