KurmaRaja' ('Tortoise King') is an avatar of the Hindu god Vishnu on his second incarnation to the earth.
Meanwhile the Garuda considered as the holy animal that is close to Vishnu.
They were together help to aid the God's victory over the demons for the elixir of life. It was a war on earth for the nectar of immortality they said.
Kurma Raja (Tortoise King) & Garuda