As Jagbir Singh surveys his role to design, build and operate the network for India’s largest mobile phone services provider, he knows that success is based on understanding two areas — the customer experience and his company’s business needs. Singh is chief technology officer (CTO) and director of the Network Services Group (NSG), India & South Asia at Bharti Airtel, the world’s third-largest mobile phone services provider (after China Mobile and Vodafone), with operations in 20 countries. He oversees more than $4 billion in annual spending, based on capital expenditures and operating expenses.

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