This example displays a choropleth-style map of India rendered as SVG, with each state filled using a categorical color scale. The map is generated from a TopoJSON file hosted on GitHub, parsed with the TopoJSON `feature` API, and projected using a Mercator projection via `d3.geoMercator` and `d3.geoPath`. The page includes a zoomable viewport (though no zoom interaction is implemented) and highlights states on hover by changing their fill to orange. The code relies on D3 v5, the d3-geo-projection plugin, and React integration, with styling defined in an external CSS file.