The primary religion practiced in India is Hinduism, which is one of the world's oldest religions and is followed by around 80% of the Indian population. Hinduism is characterized by a rich tapestry of beliefs, rituals, and philosophical systems. It encompasses a variety of deities, texts, and practices, including the worship of gods like Vishnu and Shiva, and upholds concepts such as dharma (moral duty) and karma (action and consequence). India is also home to various other religions, including Islam, Christianity, Sikhism, and Buddhism, reflecting its diverse cultural and spiritual landscape.