 Another legend, generally told in Indian folk tales, states that Aruna, the charioteer of the sun-god Surya, once became a woman named Aruni and entered an assembly of celestial nymphs, where no man except Indra was allowed.Indra fell in love with Aruni and fathered a son named Vali.The next day, at Surya's request, Aruna again assumed female form, and Surya fathered a son, Sugriva.