S. M. Marath was born into an orthodox Nayar background in Trichur, at one time the capital of Cochin State. His ancestral home was Sri Padmanabha Mandiram in Tirunvambadi, Trichur. He combined a traditional South Indian background with a cosmopolitan education, studying for his BA in English at Madras Christian College and later, in 1934, enrolling at King’s College London. He went on to join the Indian Civil Service in London, working at India House after Independence in 1947. He married Nancy, an Irish woman, had two sons and settled permanently in Britain.

A Wound of Spring, his first novel, appeared in 1960 and is dedicated to his family. Prior to this, between 1934 and 1960, he published short stories, critical essays and reviews, and broadcast regularly with the BBC Home, Education and Eastern Service. Whilst Marath regularly reviewed Indian works in British periodicals – by Mulk Raj Anand, Bhabani Bhattacharya, Aubrey Menen, Jawaharlal Nehru and M. K. Gandhi, among others – he also wrote commentaries on British writers, French literature and religious philosophy. His published works are all set in Kerala, South India, close to his ancestral home. Written in English and drawing on a wide range of sources, they explore broad existential questions. In Janu, his last published novel, he addresses specific issues related to the Indo-British encounter which indirectly draws on his experience as an Indian living in Britain. He died in London in 2003.