To destroy demon mahishasura, goddess parvati took the form of goddess katyayani it was the most violent form of goddess parvati. In this form goddess parvati is also known as warrior goddess. Goddess katyayani is worshipped on the sixty day of navratri. It is believed that the plant brishaspati is governed by goddess katyayani.
Goddess katyayani rides on the magnificent lion and depicted with four hands. Goddess katyayani carries lotus flower and sward in the left hands and keeps her right hands. In abhaya and varada mudras. According to religious text goddess parvati was born at the home of sage katya and due to which this form of goddess parvati is knows as katyayani.