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
Geography of Bihar which was part of Bihar until 2000 but now is part of a separate state called Jharkhand. Bihar has notified forest area of 6,764.14 km², which is 7.1 per cent of its geographical area. The sub Himalayan foothill of Someshwar and Dun ranges in Champaran district another belt of moist deciduous forests. These also consists of shrub, grass and reeds. Here the rainfall is above 1,600 mm and thus promotes luxuriant Sal forests in the favoured areas. The hot and dry summer gives the deciduous forests. The most important trees are Shorea Robusta (Sal), Shisham, Cedrela Toona, Khair, and Semal.