This chapter explores the evolution of infrastructure financing approaches, drawing upon historical perceptions, policy frameworks, and institutional mechanisms that have shaped infrastructure development over the decades. Usually dominated by public sector investments, infrastructure finance has progressively embraced private participation, public–private partnerships (PPPs), and innovative blended finance models. While these transitions have expanded financing sources, they have also exposed systemic challenges such as fiscal stress, regulatory constraints, project delays, and governance inefficiencies. The chapter disapprovingly examines how lessons from past financing experiences can inform contemporary strategies, especially in light of emerging global demands. With the growing emphasis on sustainable development, climate resilience, and inclusive growth, infrastructure finance must evolve to incorporate green bonds, ESG-aligned investments, digital tools, and FinTech solutions. Focusing mainly on developing economies, and India in particular, the chapter title highlights the need for institutional reform, capacity building, and policy innovation to align national infrastructure goals with global sustainability agendas and connecting historical insights with future pathways, this study offers a strategic framework for governments, financial institutions, and policymakers to develop resilient and future-ready infrastructure finance systems that not only support economic growth but also contribute to environmental stewardship and social equity.