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Throughout the world, Udai (Udai , उदय , Удаи ) is a common predominantly boy's, but scarcely girly first name. The forename Udai is characteristic of Israel, where it is quite a rare boy's name, India, where it is a rare primarily masculine, but scarcely girly name, and United Arab Emirates, where it is a rare male name. Not in comparison with a country's population, the name is most common in India, Israel, and Bangladesh. Much less frequently, Udai is the last name as well as the forename.