e-Governance in smart cities represents the integration of digital technologies and information and communication technology (ICT) into the planning, management, and delivery of urban services to improve efficiency, transparency, and citizen participation. It aims to transform traditional government operations into more responsive, accessible, and citizen-centric systems. The concept is particularly relevant in the context of sustainable development, as smart cities seek to optimize resource use, reduce environmental impact, and enhance the quality of life for urban residents. One of the primary objectives of e-Governance in smart cities is to ensure efficient delivery of public services. By leveraging digital platforms, governments can streamline processes such as issuing permits, paying taxes, accessing health services, and managing utilities. This reduces bureaucratic delays, minimizes corruption, and enhances service accessibility for citizens. For example, digital portals and mobile applications allow citizens to lodge grievances, track their status, and receive timely updates, thereby making governance more accountable and transparent. Data plays a central role in e-Governance for smart cities. The collection, analysis, and use of real-time data enable authorities to make informed decisions, predict trends, and respond proactively to urban challenges. Sensors, IoT devices, and geographic information systems (GIS) are widely used to monitor traffic flows, energy consumption, water distribution, waste management, and environmental conditions. Such data-driven governance helps cities reduce energy consumption, optimize waste disposal, and maintain sustainable urban ecosystems. Predictive analytics can anticipate demand for public transport or detect areas prone to congestion, enabling better planning and resource allocation. Citizen engagement is another crucial component of e-Governance in smart cities. Digital platforms provide avenues for participatory governance, allowing residents to contribute ideas, provide feedback, and participate in decision-making processes. E-governance initiatives encourage inclusivity, ensuring that marginalized groups and communities have access to urban planning discussions. Social media integration, mobile applications, and online forums create opportunities for continuous dialogue between citizens and authorities, fostering a collaborative approach to urban governance. Transparency and accountability are further enhanced through e-Governance mechanisms. Public access to government data, budgets, and performance metrics ensures that citizens can monitor the use of public resources. Open data platforms promote civic oversight and innovation, enabling startups and private enterprises to develop solutions