Related. Others?
A digital payments revolution in India - https://news.ycombinator.com/item?id=36011978 - May 2023 (165 comments)
Tiny, cheap smart speakers unlocked the rise of digital payments in India - https://news.ycombinator.com/item?id=35440608 - April 2023 (142 comments)
Why peer to peer digital payment system UPI should remain free in India - https://news.ycombinator.com/item?id=32821955 - Sept 2022 (41 comments)
India leaps ahead on payments - https://news.ycombinator.com/item?id=31970992 - July 2022 (4 comments)
UPI: India's Unified Payments Interface - https://news.ycombinator.com/item?id=24094323 - Aug 2020 (178 comments)