The Brahmaputra flows through Assam and joins the Ganges (called Padma in Bangladesh) to form the world's largest delta at the Sundarbans. While the Brahmaputra meets the Ganges system, it technically joins the Padma (the Ganges' distributary) in Bangladesh. The Indus flows to Pakistan, Yamuna merges with Ganges earlier, and Damodar is a separate river system.