Generally speaking, third-world literary scholars have been seen as representative tools for their societies. The current article aims to look at postmodern African and Asian societies. Thus, these two literary works "The Arrangers of Marriage" by the African novelist Chimamanda Ngozi Adichie and "Brick Lane" by Monica Ali belong to third world Contemporary Literature. Dave who is a Nigerian figure when he went to the United States, he leaves his traditions, besides, Nazneen, who stands against her tradition too to formulate a new identity. This article examines the effects of Immigration on third-world characters. Also, the focus on major concepts such as identity. Both authors are involved in what we call living in Diaspora. This article is a comparative study between the two works of two marginalized writers of a Nigerian and Bangladeshi identity, especially as the continent gradually becomes part of the postmodern and globalized world.