As Delhi faces growing challenges related to climate change and rapid urbanization, experts are proposing a shift toward 'green-blue' infrastructure. This planning concept emphasizes the restoration and management of natural water bodies (blue) and green spaces (green) to mitigate urban heat and improve water management. Proponents argue that this strategy is not merely an environmental necessity but a way to honor the city's historical landscape.

By linking heritage sites with restored ecosystems, planners aim to create a more sustainable urban fabric. This involves revitalizing traditional water harvesting structures and integrating them into modern public parks and corridors. The goal is to create a 'timeless' city that balances the needs of a modern population with the preservation of its architectural and natural legacy. While the concept is gaining traction in academic and policy circles, the practical implementation remains a subject of ongoing discussion regarding funding, land use, and the coordination between various municipal agencies responsible for heritage and environmental protection.