Consider Lahiri's other work, including her short-story collections Interpreter of Maladies and Unaccustomed Earth, her second novel The Lowland, and her 2015 nonfiction book In Other Words. The last discusses Lahiri's relationship with Italian as a language, and may shed some light on Moushumi's relationship with French.
Consider work by another Bengali Indian-American author of a slightly earlier generation, Bharati Mukherjee.
Consider other works exploring the generation gap between immigrant parents and their children, including Chaim Potok's The Chosen, Junot Diaz's The Brief Wondrous Life of Oscar Wao, and Esmeralda Santiago's Conquistadora.