This line chart shows monthly car sales in India from 2009 to 2019, with time on the x-axis and sales counts on the y-axis. It is built with D3 v5 and rendered as SVG, using `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line` to generate the plot. Grid lines and labels are styled via CSS, and the data is loaded from a CSV file using `d3.csv` before being parsed and drawn.