Spatial Data Infrastructure (SDI) is the base for the development and implementation of geospatial direction in many countries. SDI is made of framework of geographic data, Standards, Policies, Tools, Geographical information systems (GIS), Technical Infrastructure, Metadata and legal procedures. GIS being one of the components in the Spatial Data Infrastructure is important for dissemination of geospatial information and services. In Malaysia the Spatial Data Infrastructure or Geospatial Data Infrastructure is known as the Malaysia Geospatial Data Infrastructure (MyGDI). MyGDI enables the evolution of geographical information Systems in Malaysia Public Sector. Over the years many GIS applications have emerged through the development of MyGDI at the federal, state and the local authority levels. GIS application can be categorized into different disciplines such as public safety, disaster management, transportation, traffic control, tracking, health, environment, natural resources, mining, agriculture, utilities and many more. The aim of the paper is to discuss on how MyGDI has facilitated the evolution GIS in Malaysian Public Secto
