This example displays a choropleth map of Indian states, with each state filled by a categorical color and labeled with its name at its centroid. The visualization uses a Mercator projection and renders the geometry as SVG paths via `d3.geoPath`. State boundaries and names come from a TopoJSON file loaded with `d3.json` and processed through `topojson.feature`. Color encoding is handled by `d3.scaleOrdinal` with `schemeCategory10`, while `d3.selectAll` appends both paths and text labels to the SVG canvas.