This line chart displays India's GDP over time, plotting the annual value against the year. The chart uses a smooth monotone curve to connect the data points, with gridlines and formatted axis labels for readability. The visualization is built with D3 v7, loading the data from a CSV file via `d3.csv` with `d3.autoType` for automatic type conversion. It uses `d3.scaleLinear` for both axes, `d3.extent` for domains, and `d3.format` for SI-prefix currency display. The code selects the year and GDP columns by name, limits the dataset to 80 rows, and sorts the data by year.