ICICI opens new front with mobile app interoperability, other banks may follow

The UPI's open architecture allows ease of payments from and to banks and wallets. However, no bank had opened up its own system to use by other bank customers so far.

from Wealth-Economic Times https://economictimes.indiatimes.com/wealth/personal-finance-news/icici-opens-new-front-with-mobile-app-interoperability-other-banks-may-follow/articleshow/79656494.cms