The influential novelist who explored themes of identity and migration in his book "The Namesake" is Jhumpa Lahiri. The novel delves into the life of a Bengali-American family, focusing on the experiences of Gogol Ganguli as he navigates between two cultures. Lahiri’s poignant storytelling captures the complexities of cultural identity, belonging, and the immigrant experience. Her work has received numerous accolades, including the Pulitzer Prize for Fiction, solidifying her reputation in contemporary literature.