Dasha-Hara is a celebration of the triumph of good over evil. Different regions celebrate this festival in slightly different ways, but there are a lot of similarities.

For example, In Madikeri (located in the Indian state of Karnataka), an effigy of Ravanna is burned. Ravanna is considered a villain in Indian lore. Therefore the burning of Ravanna symbolizes the victory of good over evil.

But before the effigy is burned, a procession of dancers and priests will march through the streets :

In Kumaon (in the state of Uttarakhand), people flock to see a scene in the play called Ramlila (रामलीला). The scene is when Rama defeats Ravanna.