Yoga is now very popular all over world.To day is International yoga day.It is a group of physical, mental, and spiritual practices or disciplines. The concept and practice of yoga originally originated in ancient India. The founders of yoga were great Indian Saints and Sages. In the 1980s, yoga became popular across the Western world.The idea of an International Day of Yoga was the first proposed by the Indian Prime Minister Narendra Modi on September2014. Later, an international day for yoga was declared by the United Nations General Assembly on 11 December 2014.