This area plot visualizes car sales in India from 2009 to 2019, with a smooth curve showing sales trends over time. Using d3.scaleTime and d3.scaleLinear for the x and y axes, the chart combines a filled area path and an overlaid line path, both generated with d3.area and d3.line using the curveBasis interpolation. Data is loaded from a CSV file via d3.csv, and SVG rendering displays axes with tick marks and labels.