India, Aug. 4 -- The idea for a foreign trip begins with two images. An embassy and an aeroplane. In Delhi, Vasant Vihar brings them together. The shortest foreign trip takes only an afternoon. You do not need a hard-to-get visa or a boarding pass. Just walk through this South Delhi neighbourhood where foreign missions line leafy residential streets and aircraft descend towards Delhi airport every few minutes. For an hour or two, the rhythm of embassy, aircraft, embassy, aircraft, persuades the mind that the overseas journey has already begun. The illusion begins with the roadside signboards. Every few streets seem to belong to a different country, with directions to the embassies of Maldives, Bosnia and Herzegovina, Cote d'Ivoire, Costa Ri...