India is moving towards the vision of “Viksit Bharat 2047,” which means transforming the country into a developed, self-reliant, inclusive, and sustainable nation by the year 2047. In this journey, the Indian Knowledge System (IKS) plays a very important role. The Indian Knowledge System includes ancient Indian wisdom, traditions, education, philosophy, science, agriculture, medicine, yoga, environmental ethics, and cultural values that have guided Indian society for thousands of years. This research paper explains how IKS can become the foundation for sustainable development and nation-building in modern India. Ancient Indian knowledge always focused on harmony between humans, society, and nature. Concepts such as “Vasudhaiva Kutumbakam,” “Sarve Bhavantu Sukhinah,” and respect for nature promote peace, equality, and environmental balance. Traditional systems like Ayurveda, Yoga, organic farming, water conservation, and community living provide sustainable solutions for present-day challenges such as pollution, climate change, stress, and resource depletion. The paper also highlights the role of the National Education Policy (NEP) 2020 in reviving and integrating IKS into education. The study uses simple language and examples to explain how traditional Indian values can support economic growth, social development, environmental protection, and ethical living. The paper concludes that India can achieve the dream of Viksit Bharat only by combining modern technology with Indian cultural wisdom and sustainable practices. Indian Knowledge System is not only India’s heritage but also a guide for the future development of humanity.