With arms wide open, Sugreev Singh was pouring tea back and forth between two pots. The brownish milky fluid drew a smooth arch in the air as it ran from one pot to the other.
Singh, a "chai wala" or tea seller, was performing alone in a stall in New Deli, capital of India. Business was good, but he rarely had to stop to collect money. Most customers just scanned a code on the stall and transferred money with their mobile phones.
Less than a year ago, Singh, like most Indians, knew nothing about mobile payment.
What is less known is that India's leapfrog from cash to mobile payment, skipping debit and credit cards, was made possible through cooperation with China's e-commerce giant Alibaba.
Now more than 200 million Indians, most of whom don't even have a bank account, are paying with their mobile phones.