Cities are engines of growth, and it has been widely acknowledged that 'data is the new oil', essential to sustainably develop and efficiently manage cities. Urban data, especially spatially and temporally disaggregated, is a key to tracking the liveability and sustainability challenges faced by cities. The application of data science and technology can enable effective structuring of various data sets to tackle such urban challenges. The data thus captured can be used for finding solutions to urban challenges in a cost and time efficient manner.