The Delhi Metro is a rapid transit system serving the city of Delhi and its surrounding areas. It was inaugurated in 2002 and has since expanded to cover over 390 kilometers, making it one of the largest metro networks in the world. The system consists of multiple lines that connect various neighborhoods, making commuting easier for millions of residents and visitors. The Delhi Metro is known for its modern infrastructure, cleanliness, and efficiency. It operates on a mix of elevated and underground tracks, with trains running frequently throughout the day. The metro is also an environmentally friendly mode of transport, helping to reduce traffic congestion and air pollution in the city.