Yoga Sikha Upanishad is also called as Yogasikhopanishad. It is the sixty-third Upanishad of Muktika Upanishad order and found attached to Krishna Yajur Veda. Sikha means the cranium, the primary limb of the body. Yoga Sikha Upanishad literally means the Upanishad relating to the prime aspect of yoga. It is one of the biggest Upanishads like Tejo Bindu Upanishad and contains eight chapters.