Available 26 August 2026India Print Edition & Kindle: IN, US, UK
Cashless
NationHow UPI Changed Everything
Santanu Paul
B. Sambamurthy
A definitive ringside view of how India built the world’s most consequential digital payments system and reshaped its relationship with money. In a lucid, fast-paced narrative, Cashless Nation traces the personalities, bold ideas, institutional grit, and quiet breakthroughs behind this transformation. A compelling ringside view of India’s technological ascent; essential reading for anyone seeking to understand its rise as a superpower in the twenty-first century.
Available 26 August 2026India Print Edition & Kindle: IN, US, UK
Endorsed by Stalwarts

“[The] Unified Payments Interface, or UPI, has emerged as an undisputed superstar… None of this was an overnight success. The evolution took decades and gathered serious momentum only in the last decade and a half… Cashless Nation is a chronicle of that remarkable journey and the many personalities, incidents and obstacles along the way. It traces the major debates, the critical trade-offs, the complex choices… It explains why India chose to build public rails for private innovation, a model that delicately balances sovereign control with market vitality…
Cashless Nation, with its fast-paced storytelling style, is also remarkable because of its authors… They had a ringside view of all that transpired on the ground, which has given their narrative its unique flavour and distinctive energy. For policymakers, technologists, entrepreneurs and business leaders around the world, this book should serve both as an interesting read and a reference model.”

Cashless Nation is a brilliant narrative of the events, policies and personalities that contributed to the emergence of UPI, an envy of the world now, and open to everyone from a street vendor to a billionaire. What is most attractive is the way the story is told with interesting flashbacks, spicy anecdotes and valuable insights, making it at once educative and entertaining.

Technology is a great leveller, and UPI is a prime example of how India used it to improve financial inclusion for its citizens. Simple, affordable and accessible digital payments have enabled millions to join the mainstream economy and access formal credit. In Cashless Nation, Santanu and Sambamurthy show how various stakeholders contributed to UPI's huge success. The book unveils the UPI origin story in vivid detail and illuminates how it changed India forever.

Cashless Nation is the story of India's long journey from the stifling darkness of the license raj to the dazzling light of Digital Public Infrastructure. Empowered by prime ministers like Manmohan Singh and Narendra Modi, visionaries such as Nandan Nilekani have created open protocols that facilitate citizen transactions at a billion-person scale. Santanu Paul and B. Sambamurthy offer a highly readable account of a national transformation. A must-read for everyone who is amazed at the magic of instant any-to-any cashless payments, made possible by UPI.

200 billion payments a year, racing toward a billion a day — UPI is the largest thing of its kind any nation has built. India's payments revolution was neither grand design nor lucky accident but the patient accretion of choices made across four decades and many rooms. In Cashless Nation, Paul and Sambamurthy tell that story with rare clarity and warmth. A superb account of an Indian achievement and a chronicle of how a nation quietly rewrote its relationship with money.

Open, interoperable digital rails built as public goods, with private innovation on top, may be one of India's most important contributions to the digital world. Cashless Nation is much more than the story of UPI. It is a blueprint for bringing together the vision, institutions and execution required to transform India at scale.

Cashless Nation is a fascinating read of the almost-miraculous story of UPI, of a billion people becoming digitally connected and a part of the formal economy. The authors, having seen it up close, describe India's journey to digital empowerment and turn the spotlight on the people and institutions behind it.

Cashless Nation is a gripping insider account of how UPI transformed India into a global powerhouse of digital finance. With rare clarity and authority, it captures the vision, policy ingenuity and execution that made inclusive, real-time payments a national reality. A must-read for anyone interested in the future of money, innovation and financial inclusion.

Cashless Nation paints an evocative picture of how India's success in creating Digital Public Infrastructure for moving money securely and efficiently has helped the nation expand financial inclusion to unprecedented scale and impact. The book captures, in rich narrative detail and with sharp analysis, the interplay of policy, technology and vision that made UPI a pioneering platform.

Digital finance drives the economy and prosperity of modern nations. UPI has become the global role model for payments and is making an indelible mark in the economic growth of Bharat. Cashless Nation, by Santanu Paul, an Indian Institute of Technology Madras alumnus, and B. Sambamurthy, is an invaluable book that narrates the behind-the-scenes story of UPI's success.

Cashless Nation is more than the story of UPI. It is a stirring account of how India built trust at population scale through digital public infrastructure, thoughtful policy and long-term commitment. Santanu and Sambamurthy capture the ideas and decisions behind one of the most significant transformations in modern India. As countries around the world study India's digital rise, this book offers valuable lessons in building open, inclusive and scalable systems.
A Story of National Transformation
Cashless Nation traces how India built UPI, the world's largest real-time digital payments platform, and reshaped the relationship between technology, finance, and citizenship.
A Sneak Peek
No Longer Legal Tender
It was 8 November 2016, and the day had felt like any other. Barely ten days had passed since Diwali, and India was beginning to emerge from its after-effects. Diwali motivates and excites Indians like no other festival. From lighting oil lamps to setting off colourful fireworks, from buying shiny gifts to wearing new clothes, from scrubbing homes to gorging on sweets, Diwali is an opportunity to indulge in jubilant and boisterous excess. The celebrations of 2016 had been no exception.
Global Book Launch
Nandan Nilekani
Co-founder and Chairman of Infosys,
Founding Chairman of UIDAI and
Honorary Adviser, Innovation and Public Policy, NPCI
Book Launch Events in other Cities
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Available 26 August 2026India Print Edition & Kindle: IN, US, UK

