MUMBAI -- On the night of Nov. 8, trillions of rupees in high-value currency notes were suddenly "demonetized," or declared to be worthless paper, by the Indian government. But one man continued to display his characteristic grin.
Vijay Shekhar Sharma, the man who created Paytm, one of India's most successful financial technology startups, had struggled to convince investors to put money into his "mobile wallet" venture. This was a moment that would accelerate his company's growth at a pace he could never have imagined.