To summarize: Jio, which is our cellular telephony play, now is the world's largest cellular data network (pumping 22,000 TB per day) and onboards a million customers a day! We now have 110 million subscribers (in ~100 days).
This became possible when the telco regulators here gave a go ahead to use the Govt of India's pet biometric auth project Aadhaar[1] to accept electronic KYCs(proof of identity+address). A typical SIM issue took us <3m enabling Jio to issue 1M+ SIM cards a day in a developing country where printouts of PoI and PoA were mandatory.
This infrastructure as the physical layer coupled with the fact that India has 40% YoY growth rate in Internet penetration[2] has opened up a fintech opportunity in a $50B market that BCG and Google estimate[3] to be in the tune of $500B+ by 2020.
Disclosure: I work with JioMoney's product team in Bangalore. We are building the payments infrastructure on top of Jio and other telcos. We're hiring![4]
1. https://en.wikipedia.org/wiki/Aadhaar 2. http://www.kpcb.com/blog/2016-internet-trends-report 3. http://image-src.bcg.com/BCG_COM/BCG-Google%20Digital%20Paym... 4. https://news.ycombinator.com/item?id=14030014