To commemorate the 20th anniversary of the 2004 Indian Ocean Tsunami, Amrita Vishwa Vidyapeetham, in collaboration with the UNESCO Chair on Experiential Learning for Sustainable Innovation and Development, the Amrita School for Sustainable Futures (ASF), and the Centre for Wireless Networks and Applications, convened the International Conference on Tsunami Risk Reduction and Resilience.   At the conference, researchers, practitioners, and policymakers jointly explored key learnings, reflections, and innovations since the 2004 Indian Ocean Tsunami. Key themes include tools for enhancing tsunami preparedness and mitigation; models and systems for tsunami detection, monitoring, forecasting, and early warning; sharing best practices and evaluating existing systems and tools; fostering community resilience; enhancing collaborative platforms for cross-border data sharing and response coordination; and leveraging innovations like AI for improved prediction and risk assessment.  By advancing Sustainable Development Goals 11 (Sustainable Cities and Communities) and 13 (Climate Action), the contributions presented at the conference support resilient infrastructure and preparedness to mitigate the impacts of natural disasters, contributing to a safer and more resilient future for coastal communities worldwide.