Why do some people in Rajasthan worship Ravana on Dussehra?

While Dussehra celebrations across India involve burning effigies of Ravana to mark the victory of good over evil, some families in Jodhpur, Rajasthan, revere Ravana as an ancestor. Members of Dave-Godha Shrimali Brahmin community perform tarpan and pind daan for Ravana, his father Vishrava and grandfather Maharishi Pulastya at Amarnath temple during Shraddha Paksha. Many also mourn his death.