Hi Delhi is a capital of india and main center thats why Delhi airpor are very good because all domestic and internation flight arive there. I visited delhi airpor when I came from london because no direct flight from london to ahmedabad gujarat so I have to land in delhi first then I change to other flight. There are many facilities availabale at airport like shopping nall, food shop like macdonald or others. in delhi airpor giving good service to help passanger to right direction