A. Sethumadhavan, popularly known as Sethu, is a Malayalam fiction writer. He has published more than 35 books. He won the Kendra Sahitya Akademi Award in 2007 for the work Adayalangal. He received the Kerala Sahitya Akademi Awards in 1982 and 1978 for his works Pandavapuram and Pediswapnangal; and Vayalar Award for Adyalangal in 2006. He also won Odakkuzhal award for his novel Marupiravi. Sethu's other literary works include Velutha Koodarangal, Thaliyola, Kiratham, Niyogam, Sethuvinte Kathakal and Kaimudrakal. He also served as the chairman and CEO of the South Indian Bank. In 2022, he won the Ezhuthachan Puraskaram, highest literary honour of the Kerala Sahitya Akademi.

Mathrubhumi Literary Award is a literary award instituted in 2001 by leading Malayalam daily Mathrubhumi. A sum of ₹3 lakh, a plaque and citation constitute the award. The award is conferred as a recognition of a writer's overall contribution to the Malayalam literature.