What is stance of Vedanta on the concept of avatara? Does Vedanta support that god comes to earth in form of a human?
Dvaita Vedanta and Vishistadvaita Vedanta accept the concept of Avatara.
Advaita Vedanta does not accept the concept of Avatara. Advaita Vedanta claims that the Avatara is same as a Jnani. Any distinction between Avatara and Jnani would contradict scripture.
D.: The avatars are said to be more glorious than the self-realized Jnanis. Maya does not affect them from birth; divine powers are manifest; new religions are started; and so on.
M (Sri Ramana).: (1)"Jnani tvatmaiva me matam." (2)"Sarvam khalvidam brahma." How is an avatar different from Jnani; or how can there be an avatar as distinct from the universe?
D.: The eye (chakshu) is said to be the repository (ayatana) of all forms; so the ear (srotra) is of all sounds, etc. This one Chaitanya operates as all; no miracles are possible without the aid of the sense (indriyas). How can there be miracles at all? If they are said to surpass human understanding so are the creations in dreams. Where then is the miracle? The distinction between avataras and Jnanis is absurd. "Knower of Brahman becomes Brahman only" is otherwise contradicted.
M.: Quite so.
Talks with Sri Ramana Maharshi, pg 443-444