In ancient times kings used the feast of Dasara to cross the frontier and fight against their neighboring kingdoms. This border crossing is known as "Simollanghan". Thus Dasara also marks the beginning of the war season.
This was also the day to worship the weapons. According to legend, Pandav went to dwell in the forest. On the way he hid his weapons in the hole of a "shami" tree. After one year he returned from the forest and on Dussehra day he took again his weapons and worshipped the shami tree and the weapons. Hence the custom of worshipping weapons on this feast.
People decorate the entrances of their homes with torans, flower studded strings, and worship the tools of trade, vehicles, machinery, weapons and even books. As the evening falls, the villagers cross the border, and worship the Shami tree. The leaves of the Apta tree are collected and exchanged among friends and relatives as gold.