Yadav is a category consisting of several allied castes which together constitute about 20% of the total population of India, 20% population of Nepal and about 3% population of the planet earth. Yadav is an caste found in India, Nepal, Sri Lanka, Pakistan, Bangladesh, Russia, Middle East and claims descent from ancient king Yadu, the name of one of the five Aryan clans mentioned in the Rig Veda as Panchjanya, meaning "five people", is the common name given to five most ancient Vedic Kshatriya clans. The Yadav caste generally follows Vaishnav traditions, and share Vaishnav Dharmic religious beliefs. They are the worshippers of Lord Krishna or Lord Vishnu. Yadavs are classified under the Kshatriya varna in Hinduism and remained in power in India and Nepal until 1200-1300AD, before the arrival of Muslim invaders.