Navratri special Day 7: Jai Maa Kalaratri! (see pics)
In order to kill demons Shumbha and Nishumbha, Goddess Parvati removed her outer skin and revealed a dark skin; this avatar is known as Maa Kalaratri.Maa Kalratri is the most vicious form of Goddess Parvati,
Once, Prajapati Daksh organised a 'Yagya', and invited all Devta's, Devi's, Asur', and everybody except his daughter Sati and her husband Lord Shiva. Ignoring this to be her father's deliberate attempt, Sati went to her palace back at home hoping her father would forgive her and would invite her and her husband.