To get from the airport to Airport to New Delhi you can take the Delhi Metro's Airport Express Line, also known as the "Orange" Line:
Delhi Metro
The Airport Express Line connects the airport to the New Delhi Railway Station and is considered the most economical and convenient way to travel between the two. The trip takes about 23 minutes.
Taxi
A taxi from the airport to New Delhi Railway Station takes about 22 minutes and costs between ₹400–490.
Bus
A bus from IGI Airport Terminal 2 to Shivaji Park takes about 1 hour and 22 minutes and costs between ₹11–26.
Drive
Driving from the airport to New Delhi Railway Station takes about 22 minutes and costs between ₹208–301.
Town car
A town car from the airport to New Delhi Railway Station takes about 22 minutes and costs between ₹1,800–2,600.
You can buy tickets for the Airport Express Line through the Delhi Metro's WhatsApp chatbot. To do this, save the official WhatsApp number, 9650-855-800, in your contacts, type "hello", and select your language. Then, you can select the option to buy tickets.