3. Hinduism
Followers: 1 billion (15% of the world’s population)
Considered to be among the oldest religions in the world, Hinduism, the number three on our list of most popular religions in the world is often viewed as a fusion of traditions and cultures of India. Hinduism isn’t considered to be an organized religion but all Hindus believe in Supreme Being and follow some core concepts. Hinduism is regionally most concentrated major religion in the world, with 99% of followers living in Asia-Pacific region. 94% of the adherents live in India, followed by 2.3% in Nepal and 1.3% in Bangladesh.
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