Central to the Ayudha Puja are the worship of three principal goddesses: Saraswati, the goddess of learning; Lakshmi, the goddess of prosperity; and Parvati, the goddess of power. This observance holds deep religious significance as it commemorates the divine triumphs in Hindu mythology. It signifies the victory of the goddess Durga over the demon Mahishasura and the conquest of Lanka by Lord Rama.
https://www.indianetzone.com/43/ayudha_puja.htm
