Gautama then practiced penance by going to the peak of Brahmagiri. Lord Shankara was pleased by his worships and gave him the Ganges. However, Ganges was not prepared to part with Lord Shiva, which irritated him. He made TandavNrutya (dance) on the peak of Brahmagiri and dashed his jata there. Frightened by this action, Ganges appeared on Brahmagiri. Later on Ganges appeared in the Trimbak Tirtha. Gautama praised her but she off and on appeared on the mountain at various places and disappeared in anger. Gautama could not bathe in her waters. Ganges then appeared in Gangadwar, Varaha-tirtha, Rama-Laxman tirtha, Ganga Sagar tirtha. Still Gautama could not bathe in her waters. The Gautama surrounded the river with enchanted grass and put a vow to her. The flow stopped there and the tirtha thus came to be called Kushavarta. It is from this Kushavarta that the river Godavari flows up to the sea. The sin of killing a cow by Gautama was wiped off here.