摘要："Huge intelligent structure" was built by the Mughal Heroes in this Subcontinent.1 It was the process to prevent and to secure a city as well as the territory from any kind of disruption and disintegration through the fortified walled profile. The strategies, approach, and positioning of those forts were governed by the contextual specification. All different forts of Mughals Empire had unusual notion of accomplishment. Fort architecture in the subcontinent was initially developed by the Mughals to protect the territory from the enemy. Later, those forts became huge and complex. The planning approach and the morphology of the fort architecture were justified according to the relative factor. The Mughal Fort is a Medieval-era building. The Mughal Fort improves the city"s defensive strength and provides some culture at every turn. Building Walls is a prerequisite to settle the Mughal Fort. The Mughals were concern about environment. Mughals ruled most of the subcontinent until the mid-19th. During their rule they constructed elaborate forts across the countryside which served as administrative centers and living quarters for the occupiers. Bengal became a province of the Mughal Empire and was ruled from Delhi by the governors of Bengal (1576).2 Bengali river fort experienced lots of local and traditional influences only for being the river fort, stating from the component, elements of forts, and formal profile as well. Undoubtedly, Bengal conceived a different kind of river oriented fort, which has distinct characters. Even in the case of this fort formation, the Mughal had some strategic planning and morphology for spread city beyond the fort wall. The objective of the research is solely to identify distinguished characteristics and context specification and to analyze the morphology of the four-river fort architecture of East Bengal (Bangladesh).