R. Chudamani was a much-admired Tamil creative writer in the recent past. She is known for her short stories. Chudamani's short stories deal with personal and public lives. The short story "We Don't Know" taken for this study deals with social issues in the society. It also reveals how women are oppressed in the androcentric society. The plot revolves around the protagonist, Abhirami who was abused by antagonist, Velappan. This paper focuses on Marxist feminism. Marxist feminism emerged between 1960s and 1970s. It centres on women's liberation which, it is assumed, can be achieved by the eradication of class difference and capitalism alone. This paper also aims to analyse the characters in the short story, We Don't Know which determine the Marxist feminist approach.