She then lowered the child into the River Ganga. As soon as the water washed over the child, he grew into a large effulgent being who was now deemed Dvaimatura, the son of two mothers, as Parvati and Ganga each felt he was her son. Ganpati the child was now given the leadership of the ganas, the celestial hordes, by Brahma himself and worshipped in all the three worlds. All these are stories from the various puranas where, firstly, Ganesha appears as the son of Shiva or Parvati or both and is given powers as the lord of the ganas by Shiva, and secondly, acquires an elephant head which replaces his original human head.