Amitav Ghosh occupies a central position in contemporary Indian English literature for his sustained engagement with histories of displacement, migration, and cultural hybridity shaped by colonialism, globalization, and transnational movements. His novels consistently foreground mobile subjects—migrants, refugees, traders, sailors, indentured laborers, and exiles—whose lives unfold across borders of nation, language, and culture. This paper examines how displacement and migration function not merely as thematic concerns but as structuring principles in Ghosh’s fictional universe, giving rise to complex forms of cultural hybridity. Focusing on major novels such as The Shadow Lines, The Glass Palace, The Hungry Tide, Sea of Poppies, River of Smoke, and Flood of Fire, the study explores how Ghosh reimagines history from the margins, challenges nationalist narratives, and articulates hybrid identities shaped by cross-cultural encounters. Drawing on postcolonial theory, diaspora studies, and cultural criticism, the paper argues that Ghosh presents hybridity not as cultural dilution but as a dynamic process of negotiation, survival, and creativity. His fiction reveals displacement as a shared condition of the modern world and migration as a force that reshapes memory, identity, and belonging beyond fixed territorial boundaries.