The competitive advantage of Patna lies in its being the state capital and its central location. It is the centre for all higher order services in the state education , health and the political centre... Patna’s location on the banks of the River Ganga ensures that there is abundant water and fertile soil in the region.
Patna’s biggest break as entrepot came with the consolidation of Mughal control over Bengal – particularly with the final suppression of the Pathan chiefs of Eastern Bengal in 1612... the city also served as an outlet for several commodities produced in its hinterland...By 1620 Patna was being described as the “chefest mart towne of all Bengala".
Patna’s locational advantage, specifically its position on the great Gangetic artery connecting northern India to Bengal made it ideal as an entrepot city. Convenient land routes connected Patna both with the cities of the north and with important centers in Bengal . Jehangir had ordered the construction of a road that would link Patna to Agra .