 The Gandharis are also mentioned in the Chandogya Upanishad and the Srauta Sutras.The Gandharas are included in the Uttarapatha division of Puranic and Buddhistic traditions.The Puranas record that the Druhyus were driven out of the land of the seven rivers by Mandhatr and that their next king Gandhara settled in a north-western region which became known as Gandhara.