Hatha yoga and Swami Satchidananda of Integral Yoga. After about 1975, yoga techniques have become increasingly popular globally, in both developed and developing countries. The Bihar School of Yoga has been one of the largest Hatha yoga teacher training centers in India but is little known in Europe and the Americas. In the West, Krishnamacharya-linked schools have been more widely known. Examples of other branded forms of yoga, with some controversies, that make use of Hatha yoga include Anusara Yoga, Ashtanga Yoga, Bikram Yoga, Integral Yoga, Iyengar Yoga, Jivanmukti Yoga, Kundalini Yoga, Kripalu Yoga, Kriya Yoga, Viniyoga, Vinyasa Yoga and White Lotus
Karma karma theories is the concept of reincarnation or the cycle of rebirths ("saṃsāra"). Rebirth is a fundamental concept of Hinduism, Buddhism, Jainism and Sikhism. The concept has been intensely debated in ancient literature of India; with different schools of Indian religions considering the relevance of rebirth as either essential, or secondary, or unnecessary fiction. Karma is a basic concept, rebirth is a derivative concept, so suggests Creel; Karma is a fact, asserts Yamunacharya, while reincarnation is a hypothesis; in contrast, Hiriyanna suggests rebirth is a necessary corollary of karma. Rebirth, or "saṃsāra", is the concept that all life forms go