Bombay & Malwa
Marwaris in this region often started as small shopkeepers, rapidly taking on to money-lending for financing crops which were demanded by the British, at first opium and then cotton. Many of the migrants arrived just before 1860. Their fortunes may well have been founded on their participation in the cotton-export boom of Bombay during the American Civil War years, when the American raw cotton supplies to mills in Britain were disrupted. A Later spurt of migration seems to have occurred between 1890 and 1910, much of it via Indore.