Many an Indian, religiously, refers to the Hindu religion, which is one of the oldest religions in the world and is still practiced by a large portion of the population in India. The term 'Hindu' is derived from the Sanskrit word for river, 'Sindhu, ' and is used to refer to those who follow the Vedic religion. Hindus believe in a single divine power that manifests itself in many forms, and they practice a variety of rituals and traditions.