Also commonly known as Dashera, this festival occurs on Aso sud 10.
Origin
There are many stories related to this festival: 1) As we saw in Navratri, the Lord's Shakti, Parvati, vanquished the demon Mahishasur on the 10th day after a 9-day battle. This is cited in the Skanda Puran. The sentiment here is that the uncontrolled indriyas are only conquered by the Lord's Shakti.
2) On this day Lord Ram vanquished Ravan. Therefore people celebrate the Lord's victory by burning Ravan's effigy on this day.
Ritual
People offer pujan to weapons and vehicles. They also perform 'Sharda pujan' - of books. The latter is symbolic of conquest over one's self.
People embark on all forms of auspicious ventures on this day, without the need to consider the auspicious time in the 'panchaang.'
Students offer pujan to Saraswati, the goddess of learning.
Traditionally, 'jalebi' (sweet made from plain flour and ghee) and 'fafda' (made from gram flour) with 'chutney' are offered to the Lord and devotees avail of this Prasad. Import
The root sentiment of Vijaya Dashmi is victory; of good over evil and of self over one's mundane indriyas. Man forever wishes to be victorious over others and over creation. Moreover, the triumph of victory leads him to luxury and extravagance. These then ruin him. Therefore the scriptures advise us to attain victory over the mind. One who has not conquered the mind has not conquered anything.