Margaret Kochamma is Chacko's British ex-wife and Sophie Mol's mother. She and Chacko met in the café where she was a waitress while Chacko was studying at Oxford. After falling for Chacko and marrying him (which was the last thing her parents wanted for her), she realized that Chacko was not the right man for her. While pregnant with their first and only child, Sophie Mol, Margaret fell in love with a man named Joe. She divorced Chacko, which broke his heart. After Joe is killed in an accident, Margaret Kochamma decides to visit the family in Ayemenem for the holidays. She will always regret this decision.