Exorcism in Hinduism

In many Hindu traditions, it is a belief that people can be possessed by entities such as Bhoot, Pret, Pisach, Dain, Nishi, and Jatak. Exorcism is used to removed the possessing entity. The exorcism is often done by use of mantra (chanting of phases from Hindu Vedic scriptures of a deity). This is sometimes accompanied by a yajna (a special hawan with special ingredients is performed for the exorcism)