Region: Tamil Nadu, Kerala, Karnataka & Andhra Pradesh
The ninth day is also the day of the Ayudha Puja. After the slaying of Mahishasura and other demons by Chamundeswari, there was no more use for her weapons. So the weapons were kept aside and worshipped. This Ayudha puja is being celebrated since ancient times. The importance of Ayudha Puja on this occasion may also be due to the fact that on the Vijayadasami day, Arjuna took back his weapons which he had hidden in a Vani tree in order to lead a life in disguise for the promised period of exile. It is believed that one who begins or renovates his learning to work on the Vijayadasami day will secure a grand success as Arjuna did in Kurukshetra war.