The world is undergoing an unprecedented pace of urbanization, and if present trends continue, the world urban population will rise at a phenomenal rate in the next few years. This rapid scale of urbanization will need smarter, sustainable cities based on smart infrastructure that are able to effectively and efficiently manage city utilities and services for its citizens.Electric grids, water distribution systems, transportation systems, communication infrastructure, waste treatment plants, commercial buildings, hospitals, homes and education centers are existing vital facilities and infrastructure components that shape the liveability standard of a city. In the future, newer infrastructures and services will also bring benefits and create opportunities of added value to its citizens. An efficient and effective management of these existing and new city-wide systems’ requires DIGITAL TRANSFORMATION and HARMONIZATION of its traditional infrastructure.The 1st edition of LastMileS workshop @ IEEE ANTS 2017 is an iconic platform where technology, techno-commercial and governance aspects will converge under the overarching theme of “Last-mile challenges in Smart Infrastructure”.LastMileS will bring together practitioners, smart-city stakeholders and thought-leaders to present their latest achievements and innovations in the area of: an India appropriate “last-mile” communication, networking, and data transfer framework ; which shall enable digital transformation and harmonization of smart infrastructure and help bring down the CAPEX and OPEX in the upcoming smart cities deployments.