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An Indian employee looks for illegal Indian rupee currency notes at a bank in Mumbai on September 3, 2013. India's currency slid sharply and the share market crashed nearly 3.5 percent in another major sell-off caused by uncertainty in the Middle East and a new gloomy economic forecast by Goldman Sachs. The rupee, the worst performing major currency in Asia this year, skidded 3.25 percent to 68.15 to the dollar as shares closed down 651 points or 3.45 percent to 18,234.66 points. AFP PHOTO/ Indranil MUKHERJEE (Photo credit should read INDRANIL MUKHERJEE/AFP/Getty Images)
An Indian employee looks for illegal Indian rupee currency notes at a bank in Mumbai on September 3, 2013. India's currency slid sharply and the share market crashed nearly 3.5 percent in another major sell-off caused by uncertainty in the Middle East and a new gloomy economic forecast by Goldman Sachs. The rupee, the worst performing major currency in Asia this year, skidded 3.25 percent to 68.15 to the dollar as shares closed down 651 points or 3.45 percent to 18,234.66 points. AFP PHOTO/ Indranil MUKHERJEE (Photo credit should read INDRANIL MUKHERJEE/AFP/Getty Images)

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    India swaps cash for biometric payments

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India swaps cash for biometric payments

Infosys co-founder Nandan Nilekani tells Kristie Lu Stout about India's cash revolution, where all you need is a thumbprint and ID to become a walking ATM

India swaps cash for biometric payments

Infosys co-founder Nandan Nilekani tells Kristie Lu Stout about India's cash revolution, where all you need is a thumbprint and ID to become a walking ATM