Religion in Bihar Bahá'í community-building activities in four cities from different continents, the fourth of which is Bihar Sharif. Sarnaism has a presence among the tribal populations. Religion in Bihar The main religions in the Indian state of Bihar are Hinduism (practiced by 82.7% of the population) and Islam (16.9%). Other religions are practiced by small minorities. Places in Bihar have important historical and cultural associations with Buddhism, Sikhism and Jainism along with Hinduism. Since Bihar was a part of Aryavart the oldest religion of Bihar was Vedic Hinduism. The majority of the people in Bihar adhere to Hinduism (82.7%), followed by Islam
Growth of religion is due to several factors such as the low fertility level among Buddhists (1.6 children per woman), and the old age (median age of 34), compare to the overall population. According to a survey of religion in China in the year 2010, the number of people practicing some form of Chinese folk religion is near to 950 million (70% of the Chinese), of which 173 million (13%) practice some form of Taoist-defined folk faith. Further in detail, 12 million people have passed some formal initiation into Taoism, or adhere to the official Chinese Taoist Association. Comparing this with other surveys,