Sinivali was the third daughter of Angiras. Her body was of such slender make, that she was visible at one time and invisible at another and therefore she was likened to the daughter of Rudra.
यां कपर्दिसुतामाहुद्देश्यादृश्येति देहिनः। तनुत्वात्सा सिनीवाली तृतीयाङ्गिरसः सुता॥