Indigo Revolt
The Indigo Revolt (aka Indigo Riots or Blue Mutiny) of 1859-60 in Bengal, India, involved indigo growers going on strike in protest at working conditions and pay. The subsequent violence was aimed at exploitative European plantation owners, but the cause was, during and after, taken up by anti-colonial Indian liberals as an example of the necessity for independence.
The Indigo Trade
India was known for its cotton textiles through the Middle Ages, and by the mid-16th century Gujarat in northwest India was major a source of indigo, the deep blue-violet dye used to colour cotton and other materials. Indigo was in high demand by the European trading companies, including the British East India Company (EIC) which made large profits from its export. The EIC used well the long-standing expertise of Indian indigo growers and dyers, particularly in centres such as Sarkhej in Gujarat and Bayana in neighbouring Rajasthan, both in northeast India.
The making of indigo dye was a long and labour-intensive process. The plant cuttings were harvested once a year in June or July before the onset of the rainy season. These were then taken to a factory by cart where they were emptied into large vats to steep in water. The dyed water and mash was then boiled as this brought out a richer colour in the indigo grains, which then had to be strained out. The grains were next pressed into dried cakes, which were in turn pressed into barrels or, alternatively, the mass was cut into cubes and packed into chests ready for transportation. Most indigo was shipped to Calcutta (Kolkata) for sale to merchants who then organised shipment to England or the Americas where it was used to colour textiles. From the late 18th century, Bengal became the major centre for indigo production, accounting for 67% of London's total imports of the dye in 1796 (around 2 million kilograms) and then rising further into the 19th century.
The indigo industry was a volatile one. Too much or too little rain greatly affected the quantity and quality of the dye produced each year, and in boom years, overproduction brought a crash in the price. Still, for the long-term investor, indigo could be a very lucrative industry indeed. Unfortunately, the financial speculation that resulted in such a crop with potential for large gains was another source of instability. Finally, the location of many indigo plantations made them prone to flooding, which not only damaged the crop but often swept away the factory facilities.
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