A customer tests the Bharti Airtel Ltd. 3G USB Modem 7.2 Mbps with a Lenovo IdeaPad at the company's flagship store in Mumbai, India on Thursday, May 2, 2013. Bharti Airtel, India's largest mobile-phone operator, posted profit that missed analyst estimates after a weaker rupee raised the interest payments and prices for network equipment. Photographer: Kuni Takahashi/Bloomberg via Getty Images
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