She is first mentioned in the Taittiriya Aranyaka part of the Krishna Yajurveda. Skanda Purana mentions her being created out of the spontaneous anger of Gods, which eventually led to slaying the demon, Mahishasura, mounted of the lion given to her by Goddess Gauri. This occasion is celebrated during the annual Durga Puja festival in most parts of India.
This application contains:
* Katyayini Mata Jii Ka Mantra and Maa Durga Jii Ki Chalisa in audio.
* These songs you are set as ringtones.
* About Katyayini Mata in Hindi & English language.
So download it and celebrate Navaratri.....with best wishes...to all.