Answer: Hinduism
Notes: Hinduism is mostly followed in Bihar. Hinduism is practiced by 82.7% of the total population in Bihar. Islam is practised by 16.9% of the total population in the state. The other religions practised in the state are about 0.2% to 0.4%.
📌 Question Number: 11 in Demography, Tribes, Census and Society of Bihar in the above course in App.