Ekajati (Tibetan: ral chig ma. English: Single Braid).
"...Ekajati, with a body blue in colour, one face, two hands holding a nectar filled vase to the heart, wearing an upper garment of white silk fabric and a lower garment of tiger skin. The hair is tied in one braid hanging to the left; in a fierce aspect." (Konchog Lhundrub, 1497-1557).
This form of Ekajati is associated with Panjarnata Mahakala and Shri Devi. She is commonly found in the Eight Deity and Three Deity Panjarnata Mahakala configurations.
In this form Ekajati is regarded as the mother of Mahakala and Shri Devi.
Jeff Watt, 8-2006