Rooted in religion and based on a division of labor, the caste system, among other things, dictates the type of occupations a person can pursue and the social interactions that she may have. Castes are an aspect of Hindu religion. Other religions in India do not follow this system.
-istan is a suffix in the Persian language (Farsi), denoting a place. Thus, Pakistan means place of the pure (pak=pure). It does not just refer to geographical areas, as in bimarestan=place of the sick=hospital. The suffix is widespread in Eurasia because of Persian influence (the Mughals of India for example used Farsi).
Pakistani Music history. The music of Pakistan is probably one of the most diverse selection of music in the whole world within one country; being at the crossroads of Central Asia, Iran, the Middle East and India. Pakistan has developed a multitude of different types of music and sounds. Major influences of Pakistani music are Arabic, English, Indian, Persian and Portuguese. Pakistani genres like sufi rock and bhangra have become popular throughout the United Kingdom, the United States, Canada and around the world.