CASHLESS NATION How UPI Changed Everything | The Story of India’s Digital Payments Revolution And Cashless Economy Santanu Paul | B. Sambamurthy

BEHIND EVERY INSTANT PAYMENT IS A DECADE OF VISION, INNOVATION AND COLLABORATION. CASHLESS NATION CHRONICLES THE STORY OF HOW UPI TRANSFORMED THE WAY INDIA DOES BUSINESS AND CREATED A DIGITAL PAYMENTS MODEL THAT HAS CAPTURED THE WORLD’S ATTENTION.

Few technologies have reshaped a nation’s habits as quickly—or as profoundly—as UPI. In less than a decade, it transformed how India does business, breaching barriers of literacy, language, culture and geography to connect everyone from street vendors to global corporations through a simple, instant, and robust payments network.

Its success can seem almost inevitable in hindsight. But every single one of those crores of daily transactions is founded on vision, technological ingenuity, institution building, improbable partnerships and years of painstaking effort.

Spun as a taut, lucid, fast-paced tale by industry veterans Santanu Paul and B. Sambamurthy, Cashless Nation is the chronicle of a nation reimagining the relationship between citizens, markets and the state—and, in the process, creating a model that has captured the world’s attention.

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Santanu Paul is a computer scientist and entrepreneur who sees technology as a force for public good. From startups to global tech firms, he has chased wicked problems in education, finance and regulation. He was the founding CEO of TalentSprint, a deeptech upskilling platform focused on inclusion. As an Independent Director at NPCI and BSE, he has seen India’s fintech infrastructure from the inside and been in closed-door conversations where public interest, policy and platforms collide. He is an alumnus of IIT Madras and the University of Michigan.

1. Sambamurthyis a career banker who believes technology can democratise finance and increase prosperity. From branch manager to heading a public sector bank, he built operating models that accelerated financial inclusion and enabled large-scale digital transformation. As CEO of IDRBT, and later as RBI nominee director and briefly non-executive Chairman of NPCI, he helped give shape to India’s electronic payments and governance frameworks. A chartered accountant, he evolved over time from being a functional specialist into an institutional leader.