This example displays an interactive choropleth map of India, with districts and states rendered as colored SVG paths that respond to zooming and hovering. It uses D3’s `geoMercator` projection, `geoPath` for drawing geographic features, and `topojson.feature` to extract polygon data from TopoJSON files. The map also applies `d3.scaleOrdinal` with `schemeCategory10` to color districts, and `d3.zoom` enables pan and zoom. State and district names appear in tooltips via appended text elements.