Green Chemistry for a Better Tomorrow presents a comprehensive and structured exposition of green chemistry as a transformative approach to achieving environmental sustainability, economic efficiency, and social responsibility. The book systematically explores the foundations, principles, applications, and future role of green chemistry within the Indian context, where rapid industrialization, agricultural dependency, and environmental stress demand sustainable chemical solutions. Organized into three cohesive units and five chapters, the content progresses from fundamental concepts to practical applications and long-term sustainability perspectives. Emphasis is placed on pollution prevention, safer chemical design, resource efficiency, renewable inputs, and environmentally benign processes. The book highlights how green chemistry serves as a proactive scientific framework rather than a reactive environmental remedy. Designed for undergraduate and postgraduate students, educators, and researchers, this work aims to build conceptual clarity, promote responsible chemical thinking, and support India’s transition toward sustainable development through green chemical innovation.