This example presents a choropleth map of India, rendered using the Mercator projection via `d3.geoMercator` and drawn with SVG paths. Each state is filled with a color from `scaleOrdinal(schemeCategory10)`, and hovering over a region turns it brown. The visualization loads TopoJSON data from a GitHub gist, parses it with the `topojson.feature` method, and projects the geometry using `d3.geoPath`. An explicit title element is added per state based on the data’s `interpolateRainbow` property, though no such property exists in the dataset.