This choropleth map displays Indian states, colored using a categorical scale based on interpolated attributes. The visualization uses D3 v5 with a Mercator projection and SVG rendering, loading state boundaries from a TopoJSON file hosted on GitHub. The code employs `d3.json`, `geoMercator`, `geoPath`, and `scaleOrdinal` with `schemeCategory10` to fill each state path. Interactive hover effects are defined in CSS, though the map itself does not implement zooming or panning. The viewport dimensions drive the SVG size, with a custom translate and scale applied to the projection.