Kaushiki

Kaushiki is a Hindu goddess. She is an affiliation of Shakti and emerged from goddess Parvati. Her beauty had attracted many "asuras" who met her as messengers in her glittering beautiful palace. She was a great woman warrior, raised on her fierce lion or tiger. This form of her fierce fire was the essence of her beauty. There are many temples for her worship. She also has 8 hands and Trishula, chakra, pestle, etc. in them. She is also known as Goddess Ambika in SkandaPuran and Devi Mahatmya (from Markandeya Purana) who appeared from the body of Parvati and slayed the demons Shumbh and Nishumbh. According to the "Devi Mahatmya", her avatar is Chamunda.
Birth.
The story of Kaushiki's birth is mentioned in the "Matsya Purana" and "Markandeya Purana", with both the texts different. As in the "Matsya Purana", Parvati once performed austerities and meditation to become fair (Mahagauri). It is said that from the skin she sloughed off from her body emerged the beautiful and dark-complexioned goddess Kaushiki. After that, Kaushiki went to Vindhyas and slayed Shumbha and Nishumbha, two demons who had gained the boon of immortality from Brahma. The same is in the "Shiva Purana".
In the "Markandeya Purana", once when the "asuras" (demons) drove the gods out of the heavens, they sought the help of Parvati. Pleased by them, she appeared, and from the cells ("koshas") of her body emerged the beautiful goddess Ambika, who declared that she would marry him who managed to defeat her in battle. Later she slayed the demons and the gods could return to the heavens.