How did the American Civil War create a cotton trade boom in Bombay?

During the American Civil War (1861–1865), the disruption of cotton exports from the southern United States created a massive surge in demand for Indian cotton in British markets.12

This shift triggered a significant economic boom in Bombay, which served as a primary imperial port city for the extraction of raw materials. To capitalize on this demand, middlemen from port-city agency houses traveled inland via the rapidly expanding railroad network, encouraging village headmen to convert vast tracts of land from subsistence grain production to commercial cotton cultivation. During this period, high demand led to large sums of silver flowing into the region as payment for these raw materials.12

However, this prosperity was short-lived. Once the American Civil War ended and the United States resumed its cotton exports to Lancashire mills, the Indian market collapsed. This left many peasants, who had been transitioned away from food crops, vulnerable to the volatility of the global market, contributing to a period of economic hardship and subsequent famines in the late 19th century.12