Sethu is an Indian actor and writer associated with films like Mallu Singh (2012), Kanna Laddu Thinna Aasaiya (2013), Cousins (2014), and Valeba Raja (2016). His 2017 release as a writer includes the 2017 comedy film Achayans. Directed by Kannan Thamarakkulam, the movie stars Prakash Raj, Unni Mukundan, Adil Ibrahim, and Sanju Sivram in the lead. His 2018 release includes Oru Kuttanadan Blog.