Indra, the king of heaven, he ruled over this planet as perfectly as the heavenly king Indra does. How? Ajitasrayah, completely being devotee. So the king can rule over the country... Why country? The world, world over. If he takes shelter of Krsna, Ajita means Krsna conscious, God conscious, such person, as they are advised in the sastra, then they can rule over the any part of the world or the whole world exactly like Indra, the king of heaven. He is ruling over perfectly.
Lecture on Srimad-Bhдgavatam 1.10.3-4, Tehran, March 13, 1975