The term "human resource" refers to the persons or workforce inside an organisation who are in charge of carrying out the tasks assigned to them with the intention of achieving the aims and objectives of the organisation, which is only feasible through correct recruitment and selection, giving suitable orientation and induction, training, skill improvements, right assessment of employees (performance appraisal), providing appropriate compensation and benefits, maintaining proper. Any organisation that wants to be vibrant and growth-oriented must invest in its human resources. Human resources, in contrast to other resources, have essentially limitless potential. Only through cultivating an environment that can consistently recognise, bring to light, nurture, and utilise people's strengths can the potential be utilised. Due to their linkages and shared goals, various studies in recent years have increasingly linked the ideas of smart cities and sustainable cities. However, there are many different definitions of "smart cities," and many of them do not include a consensus on sustainability. It demonstrates how the emphasis placed on smart technology, smart people, or smart collaboration as the defining characteristics of smart cities varies in today's debates regarding smart city administration. These currents cover a wide range of topics, from the effectiveness and technological development of the city's hard infrastructure (which includes transportation) to infrastructure that focuses on people and their social and human capital, knowledge, inclusion, participation, social innovation, and equity. Finally, top-down and bottom-up techniques and initiative types are also taken into consideration. We suggest using the bottom-up initiatives and the people-oriented stream in our study. The relationship between smart city and sustainable city concepts has to be better understood because achieving sustainability is a significant problem for contemporary cities. This accomplishment is also closely related to society's involvement in significant decisions about development and decision-making, which also increases the legitimacy of urban governance. The development of sustainable urban mobility, which is seen as a major difficulty in rapidly urbanising growing cities and creating serious health, economic, social, and environmental issues, is one key step in the direction of sustainable cities. The future of sustainable cities will also heavily rely on sustainable urban mobility. The problem might be best resolved by adopting suitable mobility policies, programmes, and plans along with appropriate diagnostics, which necessitate extensive knowledge about the travel habits of the people. Mobility patterns are particularly influenced by urban features as well as by the social and cultural characteristics of urban residents. A key component of creating a sustainable city that uses and distributes its resources effectively and fairly is understanding the relationships between people, the use and occupation of land, the distribution of activities over territories, the accessibility of various services, urban forms, functions, and their connections. One of the most important concerns to solve in the setting of megacities in developing nations is sustainable urban expansion, and we suggest that this necessitates actions with a dual approach: of infrastructure and public services.