This paper examines the ways in which Arundhati Roy and Amitav Ghosh rewrite the inherited narrative structures of empire in their major novels, arguing that both writers use fiction as a deliberate site of postcolonial resistance rather than mere historical reflection. Drawing on the theoretical frameworks of Edward Said, Homi K. Bhabha, and Gayatri Chakravorty Spivak, the study reads Roy's The God of Small Things and The Ministry of Utmost Happiness alongside Ghosh's The Shadow Lines, The Hungry Tide, and the Ibis trilogy to trace a shared preoccupation with reclaiming subaltern voice, contesting colonial cartography, and disrupting linear, imperial time. The paper argues that Roy resists empire chiefly through the intimate register of caste, gender, and the fractured family, while Ghosh works at the level of geography, trade, and diaspora, mapping the entangled histories of the Indian Ocean world. Read together, their fiction constitutes a sustained project of narrative decolonization: one that does not simply invert colonizer and colonized but reconstructs the very idioms — language, map, archive, and memory — through which imperial power once represented itself as natural and inevitable. The paper concludes that Roy and Ghosh together model two complementary strategies of postcolonial resistance, the intimate and the cartographic, which jointly demonstrate literature's capacity to rewrite empire from within.