This map of India visualizes musical instrument sales per state using a choropleth overlay on a Leaflet map. Hovering over a state reveals its specific sales value in a tooltip, while a side panel includes a color legend and summary information. The visualization combines Leaflet with D3 v7, using `d3.geoTransform` to project GeoJSON state boundaries onto the map’s coordinate system and `d3.scaleSequential` with an interpolated color scale to encode sales data. State geometries come from a public India GeoJSON source.