This pie chart visualizes the male and female populations of Indian cities, using a CSV dataset loaded from a GitHub gist. Each slice represents a city's total population, with a legend listing city names alongside their respective male and female population values. The visualization is built with D3 v5, using the `pie` and `arc` APIs to generate SVG paths, and `scaleOrdinal` for color assignment. The chart is rendered as an SVG with a custom legend, and the data is fetched asynchronously via the `csv` function.