river in northwestern India and eastern Pakistan, formed by the confluence of two streams (Chandra and Bhaga) in the Punjab Himalayas in India's Himāchal Pradesh state. It flows west through Jammu and Kashmir, between the steep cliffs of the Siwālik Hills and the Lesser Himalayas, then southwest into Pakistan to its junction with the Sutlej, a tributary of the Indus. It is about 605 miles (974 km) long and feeds several irrigation canals.