The name Indus comes from the Sanskrit word hindu, meaning ocean, from which also come the words Sindh, Hindu, and India. The Indus, one of the great rivers of the world, rises in southwestern Tibet only about 160 kilometres west of the source of the Sutlej River, which first flows through Punjab, India and joins the Indus in Pakistani Punjab, and the Brahmaputra, which runs eastward before turning southwest and flowing through India and, Bangladesh. The catchment area of the Indus is estimated at almost 1 million square kilometres, and all of Pakistan's major rivers—the Kabul, Jhelum, and Chenab—flow into it.