There is another history, which is in the Brahma-vaivarta Purana. Ganga is a sakhi, a gopi like Lalita, Visakha, Srimati Radhika, Candravali and others like them. One day Sri Krsna was sitting with Ganga-sakhi, and He was engaged in some pleasant talks. In the meantime Srimati Radhika came and saw them, and She thought, "Oh, Krsna is meeting with Ganga-sakhi?"