Vijaya Dashami is the victory of good over evil – Goddess Durga annihilating Mahisha and Lord Ram defeating Ravana. Symbolically, it is the prolonged struggle against the ego and ignorance in each human being. After the struggle there is the day of new beginnings – Vijaya Dasami.
Dasara is observed on the tenth day of the waxing phase of moon in Ashwin month. Dasara 2009 date is September 28. Dasara marks the end of the Navratri festival and Durga Puja.
On the final day of Dussera celebrations, huge effigies of Ravana, Kumbakarna and Meghnath are burned.In
Source : Hindu Blog