Uttarakhand Information Centre

The Chandogya Upanishad is one of the “primary” (mukhya) Upanishads. Together with the Jaiminiya Upanishad Brahmana and the Brihadaranyaka Upanishad it ranks among the oldest Upanishads, dating to the Vedic Brahmana period (probably before mid-first millennium BCE).

It figures as number 9 in the Muktika canon of 108 Upanishads.