"BHoota Kola" A Tradition of ancestor worship followed in Mangalore,Karnataka.This unique tradition found also in Kerala...separates this place from the rest of India.
Genrally believed to invoke ancestor spirits in a human body for remedies in disputes,illness or just about anything.This ritual is till strong followed by the locals with utmost repect and dignity.
For more info click here
http://en.wikipedia.org/wiki/Bhuta_Kola