Hands-on into the multi-perspective and multi-dimensional Digital Twin use-cases undertaking at FARI and our collaborative public administrations - inclusive of AI, predictive data analytics, autonomous systems, use of IoT sensors, real-time data, citizen participation, data security, overview architecture, and data ethics & governance. It would consider real-world impactful use-cases being innovated - Transport and Mobility, Air Pollution data monitoring, Safety and Security, Building Information Modelling, and Culture & Heritage digital preservations. This would be an overview of technical discussion, with a deep dive into brainstorming, ideations, and questions.