India, Nov. 7 -- On any given day, a hundred billion or 10,000 crore WhatsApp messages are sent and delivered throughout the world. That number, Sam Knight reported in a recent article in The New Yorker, roughly equals the number of stars in the Milky Way. WhatsApp's origin is traced to 2009 when Californian computer programmer Jan Koum experimented with the idea of an app that showed what a caller's contacts were doing before they were called or messaged. He toyed with alternate names such as Status app, Smartphone status and iPhone status before settling on WhatsApp. In 2014, WhatsApp was sold to Facebook. Today, roughly half of the world's adult population, minus China, is using WhatsApp. India, of course, is WhatsApp's largest user co...