As far as Naj is concerned, identity is not the issue, hes English; full stop. His Indian born parents, on the other hand, with their experience as immigrants, have a different perspective.
When they arrange a visit to India for him to visit his Grandmother, his Journey Home turns out to be a life changing event.
He meets a Canadian Indian woman on a similar journey to himself in Delhi; an immediate rapport is struck between them. His Journey Home becomes a baptism of fire; he experiences a rite of passage he will never forget.