Answer: Third Person (Limited Omniscient)
Although The Namesake is written in the third person, we get the story through the filter of different characters' points of view, primarily those of Gogol, Ashima, Ashoke, and Moushumi. Namesake is narrated from a third person omniscient point of view.
Explanation: In third-person narration, the narrator exists outside the events of the story, and relates the actions of the characters by referring to their names or by the third-person pronouns he, she, or they. In literature, third-person point of view follows multiple characters and narrative arcs, zooming in and out of a story the way a camera does in a movie. A third-person narrator can be all-knowing (aware of every character’s thoughts and feelings) or limited (focused on a single character, or aware only what certain characters say and do).