Category Religion

Almost all Religions accept existence of Evil and Ghosts and they can be exorcised.
Hinduism also believes in this concept and states it is curable and details of exorcism ceremony may be found in the Atharva Veda, one of the ancient Religious text of the Hindus.
In general, the phenomena of possession is faced by people with not too strong a mind and will power.
General instructions to avoid this malady is have Faith, whatever it might be ;avoid visiting graveyards,burning ghats at dusk or in the night alone;flush out body waste like nails,hairs in water;keep homes clean and neat and pray;