Sustainability has emerged as a global priority in response to environmental degradation, climate change, and resource depletion. In this context, traditional knowledge systems offer valuable insights into sustainable living. The Indian Knowledge System (IKS), rooted in ancient philosophies, cultural practices, and scientific traditions, provides a holistic approach to sustainability. This paper explores how IKS contributes to sustainable practices through its ecological wisdom, ethical values, and community-based approaches. It examines key areas such as agriculture, water conservation, health systems, architecture, and lifestyle practices. The study highlights the relevance of integrating traditional knowledge with modern scientific approaches to achieve sustainable development goals. The findings suggest that IKS can play a crucial role in promoting environmentally responsible and socially inclusive development.