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Book review by Madanmohan Rao, Co-founder, MXR.world [April 03, 2026]
LeanSpark: Frugal by Design, Global in Impact is an inspiring yet practical book on innovation strategy by Jaideep Prabhu, Priyank Narayan and Mukesh Sud.
Examples from India show how scarcity can help in becoming an innovation superpower, with case studies of drones, EVs, fintech, AI, sports, space, and public policy. The authors distil a decade of research and fieldwork into a practical playbook for doing more with less, and for doing it at scale.
Jaideep Prabhu is professor of marketing at Cambridge Judge Business School, University of Cambridge, where he is also director of the Centre for India and Global Business. His earlier books are Jugaad Innovation and Frugal Innovation.
Priyank Narayan is a faculty member at the department of entrepreneurship and management at Ashoka University, where he also serves as the founding director of the InfoEdge Centre for Entrepreneurship. He holds a PhD from IIT Delhi.
Mukesh Sud, a former faculty at IIM Ahmedabad (IIMA) has also been an entrepreneur. He continues to teach at IIMA and Ashoka University. His next book is Simple Thinking: Solving Problems with Simplicity.
LeanSpark is based on four key principles: lean execution, purposeful simplicity, adaptive scalability and systemic sustainability. It helps design products, services and policies that are affordable, resilient and environmentally conscious—without sacrificing ambition or quality.
Jugaad involves temporary improvisational fixes and may ignore externalities. However, LeanSpark is robust and long-term, minimises environmental cost, and works within regulatory and ethical bounds.
The authors have come up with a tool called the Frugal Innovation Canvas (FIC) to turn constraints into launchpads. It can be used by startups, large firms, social enterprises, or government agencies.
Each of the 12 chapters in the 240-page book is written in an easily-digestible storytelling style, with lessons and tips for aspiring innovators. The three sections cover examples from the business, culture and public infrastructure realms.
“At some point, passion and hustle must make way for process and systems,” the authors affirm. Clever, low-cost workarounds may be good starting points, but structure and scale enablers must follow, as illustrated in the book.
The authors chart the rise of Rahat Kulshreshtha’s Quidich Technologies in the drones space, with applications ranging from election rallies to cricket matches. “What set him apart was his openness to the unexpected,” the authors observe.
Chetan Maini transitioned from a technologist to an entrepreneur as he launched EV company Reva (Revolutionary Electric Vehicle Alternative), later acquired by Mahindra. “For Maini, affordability is a design goal, not a compromise,” the authors explain; ambition and constraint can coexist.
The ePlane Company, founded by Satya Chakravarthy and Pranjal Mehta, envisions air taxis that leverage rooftops of existing buildings. BigBasket (retail) and ChaiPoint (F&B) are other cited examples of lean, tech-enabled and customer-obsessed firms.
As for large firms, Rohini Laya Venkateswaran introduced innovation methods at P&G such as an internal Shark Tank and awards for productivity ideas. The key lies in balancing structure and spontaneity.
Lalitesh Katragadda built Google Maps for India by cleverly leveraging the power of the crowd and expert communities to generate and curate data. Such methods have led to an entire ecosystem for tech-driven startups.
On a different scale, Manoj Kumar built the Social Alpha launchpad to tackle large problems that the market alone cannot solve, particularly in the area of product entrepreneurship in deep tech. Rajesh Nair focuses on creating ecosystems for mentoring student innovators and catalysing grassroots ingenuity.
Teach For India builds leadership for school students from the ground up, while Central Square Foundation targets government policy and the education system.
The second section of the book goes beyond the usual examples of business innovation into the cultural realm. Examples include the Jaipur Literature Festival, inspired by the model of the Edinburgh Fringe Festival. It spans languages, genres and pricing tiers, and even expanded into music and other geographies like South Africa and Australia.
The Kochi-Muziris Biennale transforms the entire city into a living canvas for art, via partnerships with local and international stakeholders. Sahiba Bali rose to fame as a creator and media influencer by juggling corporate gigs, acting roles, anchor positioning, and her own creativity and authenticity.
ISRO, India’s digital public infrastructure (Aadhar, UPI, ONDC) and AI4Bharat are good examples of frugal innovation at a larger scale. Other examples are Nandan Kamath’s GoSports Foundation and its use of scholarships, partnerships and technology to scale the sports ecosystem.
AI4Bharat aims to create a sovereign, inclusive, responsible, and open AI path. Sarvam AI is building frugal solutions that cater to India’s vast linguistic diversity.
There are lessons here as well to draw from China’s DeepSeek success, though India’s path can be different. Perhaps India should focus more on domain-specific AI than massive foundation models, as suggested by investors like Mohandas Pai.
“Western models that are capital-intensive, resource-heavy and often exclusive are increasingly unsuited to an era of climate crisis, inequality and finite resources,” the authors explain. “By combining frugality with purpose, and technology with inclusion, India is creating a model that works not just for itself but for the world,” they add.
India’s superpower is an open, messy, wonderfully chaotic marketplace of ideas. “A culture wired to do more with less,” they affirm.
In sum, the authors have provided a valuable resource for an audience who “cares about innovation that is affordable, scalable and humane.” They maintain that India is well-poised to further harness LeanSpark by translating its frugal ingenuity into large success stories. But these methods and mindset can be harnessed in any country facing limits of capital, infrastructure or climate.