This example displays a choropleth map of Indian states, coloring each region with a distinct category color and labeling it with the state name. It loads India’s state boundaries from a TopoJSON file via `d3.json`, then converts and projects the data using `topojson.feature` and a `d3.geoMercator` projection. The map is rendered as SVG paths with `d3.geoPath`, and a D3 ordinal scale with `schemeCategory10` assigns fills. State labels are placed at path centroids.