This article examines the transformative impact of cultural practices on the urban public sphere in Bangalore, India, focusing on their links to social sustainability. The first phase of the study identifies, defines and describes the sites of cultural practices using four multiscalar practices in the city. Physical surveys and field observations capture the spatial transformations induced by these practices, including changes in control, levels of access and spatial extent of public spaces. The second phase analyses how these transformed environments contribute to social sustainability. This analysis uses a two-pronged approach. First, participant observation helps establish the heterogeneity of actors and activities associated with each practice. Second, semi-structured interviews with stakeholders delve into the social sustainability impacts of these practices. A binary assessment framework is devised to establish the link between cultural practices and social sustainability factors. The study argues that while cultural practices bring public spaces to life, temporary appropriations of public spaces often disrupt city rhythms due to a lack of integration with urban planning. Recognizing these practices and integrating them into the master planning process can improve the urban public realm and foster social resilience.