Maa Katyayani is the Sixth form of Maa Durga, The name Katyayani came due to her father Name Katyayan Rishi, this is the Violent form of Maa Durga, in this form she destroyed demon Mahisasur.
स्वर्णाआज्ञा चक्र स्थितां षष्टम दुर्गा त्रिनेत्राम्। वराभीत करां षगपदधरां कात्यायनसुतां भजामि॥
The sixth form of the mother is called by the name of Katyayani. They have a lion and they have four sides. This goddess Amod is going to give fruit. Their worship destroys disease, mourning and fear. Mahishasur Mardini is also a name for the killing of Mahishasura monster.
On the sixth day of Durga Puja, worshipping the goddess Kalash and Goddess Katyayani first. After starting the practice of worship, worshipping the Goddess by taking flowers in hands and meditating on the Goddess is done. After worshipping the Goddess, worshipping Mahadev and Param Pita should be done. Shree Hari’s Pooja should be done only with Goddess Lakshmi. There is a conch shell in the worship of the mother and the stores are organized.
Manokamna Maa Katyayani has been regarded as fruitless. Devotees should be worshipped in the field of education.