Aruṇā (Aruna)and Varuṇā(Varuna), two sacred rivers have merged into Gautamī Gaṅgā (Gautami Ganga). The place of this assimilation of the flows is known as Aruṇā-Varuṇāsaṅgama (Aruna-Varunasangama; the place of union of the two rivers), but Padmapurāṇa (Padmapurana)says that initially Godāvarī flowed in between Aruṇā and Varuṇā — aruṇā-varuṇayormadhye yatra godāvarī nadī. Basically, this Gautamī Gaṅgā is the river Godāvarī. The place where Aruṇa has been united with Godāvarī, is famous as the place called Nāsika (Nasik) in modern Mahārāṣṭra (Maharashtra) . In the Sangamner inscription of the 10th century AD, the place where Aruṇā has merged
with Godāvarī, is called a tīrtha (tirtha; site of pilgrimage), and Nasik is located in this place of union. Varuṇā perhaps got merged with Godāvarī somewhat earlier along the flow, so the inscription does not mention Varuṇā separately.