Mumbai’s Dharavi, Asia’s largest slum, is undergoing a technological revolution as it embarks on India’s first slum redevelopment project using cutting-edge tools like drones, Lidar, and digital twin technology. The Dharavi Redevelopment Project (DRP) aims to ensure transparency, precision, and efficiency in reimagining this dense urban settlement.
Traditionally, slum rehabilitation projects in India relied on manual methods and basic surveying tools. However, the Dharavi project represents a paradigm shift. Drones are being used for aerial imaging, providing a comprehensive overview of the 2.1 square kilometre settlement. Complementing this, Lidar (Light Detection and Ranging) technology employs laser scanning to create detailed 3D models of Dharavi’s intricate maze of structures and lanes. On-ground data collection has also been upgraded. Mobile applications are now used for door-to-door surveys, ensuring data is accurately captured and securely stored. These apps pinpoint each slum dweller’s exact location, minimising errors and ensuring streamlined data retrieval.
The pièce de résistance of this technological approach is the creation of a “digital twin” of Dharavi—a virtual replica that consolidates all data into a cohesive model. This digital twin is set to become a critical tool for analysing the settlement, resolving disputes, and determining rehabilitation eligibility with unmatched precision. Despite the advancements, the project faces challenges, particularly in building trust among Dharavi’s 1 million-plus residents. Concerns about data misuse and transparency have prompted the DRP to launch extensive awareness campaigns. These include distributing informational pamphlets, hosting community meetings, and establishing call centres to address queries and alleviate fears.
Field supervisors play a pivotal role, guiding residents through the documentation process. For those unable to furnish the required papers during surveys, officials assist in retrieving the necessary documents, ensuring that no one is left behind in the redevelopment effort. The Dharavi Redevelopment Project is not just a technological milestone but a glimpse into the future of urban planning in India. By embracing drones, Lidar, and digital twins, the project underscores the potential of technology to tackle large-scale urban challenges with transparency and efficiency. While hurdles remain, particularly in gaining community trust and navigating the complexities of one of the world’s densest settlements, this initiative marks a transformative step in creating a modern, sustainable Dharavi—a slum to city success story in the making.
