Infrastructure facilities and new structures proposed in an area must be designed for the expected level of ground shaking without experiencing excessive damages. Seismic design parameters provided in the building codes express the intensity of ground shaking to be experienced by the site in an area during an earthquake and are mapped for the conventional ground conditions on a national scale. In the case of infrastructure facilities and important structures, the code-based seismic design loadings are inappropriate and not complete. In this study, an attempt is made to develop seismic microzonation maps for Chennai city, south India. Recently, Chennai Corporation has given more impetus for the developmental activities in the form of infrastructure facilities and commercial establishments. This has led to the need for seismic microzonation studies and accordingly the fuzzy approaches are adopted for seismic hazard and ground response analyses in the study area. The challenge in the conventional seismic hazard and ground response analyses is to consider the ambiguity and lack of knowledge exist in the form of epistemic uncertainty. The epistemic uncertainty in the hazard analysis is accounted using fuzzy-probabilistic seismic hazard analysis (FPSHA). A fuzzy approach is also used for performing one-dimensional equivalent linear ground response analysis to consider the fuzzy information in the analysis. The obtained Peak Ground Acceleration (PGA) values at different depths from the hazard and ground response analyses are used in the development of two-dimensional seismic microzonation maps for the Chennai city. These maps along with ground motion data are very useful for engineers to design new structures and facilities for earthquake resistance and seismic safety assessment of existing and heritage structures. These maps are also useful for urban planners and policymakers for executing the developmental works and undertaking mitigation measures during earthquake events.