To improve connectivity along Delhi’s metro line, Delhi Metro Rail (DMR) initiated a project to construct the Punjabi Bagh West interchange station, supporting sustainable transport and shorter travel times for public transport users. DMR faced technical and engineering challenges determining the optimal height of the interchange’s platform crossing two operational lines, compounded by site constraints and continuous heavy traffic. To optimize structural integrity, design, and construction, DMR realized that they needed integrated technology for careful planning, simulation, and analysis.  DMR selected OpenBridge, STAAD, and RAM to develop 3D models and a digital twin, evaluating numerous design options to determine an optimal solution. Working in a flexible and collaborative digital environment streamlined workflows, enabling the team to perform real-time model modifications and clash detection, improving efficiencies by 20% to save up to INR 8 million in costs. The Bentley-based solution optimized design and construction, saving 12% to 16% in concrete materials and 350 megatons of steel to reduce the overall carbon footprint of the project.