The primary religion in India is Hinduism, which is practiced by approximately 80% of the population. Hinduism is one of the world's oldest religions, with roots tracing back over 4,000 years. It encompasses a wide array of beliefs, rituals, and philosophies, celebrating a pantheon of deities and a rich cultural heritage. Key concepts in Hinduism include karma, dharma, and moksha, with various festivals, rituals, and practices that reflect its diversity. While Hinduism is dominant, India is also home to other religions, including Islam, Christianity, Sikhism, Buddhism, and Jainism, contributing to its complex cultural landscape.