That's amazing. It can be easy to write off WhatsApp with an ethnocentric view, but to hear how other people are using it on the other side of the world certainly adds a new perspective
Same thing with the diamond merchants in India. A lot of deals and much of the communication is now done over WhatsApp. People in India get a smartphone for the sole reason to use WhatsApp, whether the individual is a servant or a rich businessman.
Also I noticed these Tata "WhatsApp data packs"; so they did partnerships directly with mobile providers. 30m actives in India.