In the epic Ramayana, Jambavanta helped Rama find His wife Sita and fight her abductor, Ravana. It is he who makes Hanuman realize his immense capabilities and encourages Him to fly across the ocean to search for Sita in Lanka. Jambavan mentions two past incidents in his life in the Ramayana.
Jambavana also known as Jambavanta is a character originating in Indian epic poetry, popularly found in Ramyana (story of Lord Rama, Bhagwan Vishnu’s avatar as a human on Earth).
The King of Bears, he is an Asiatic or sloth bear in Indian epic tradition (though he is also described as a monkey in other scriptures), immortal to all but his father Brahma.Several times he is mentioned as Kapishreshtha (Foremost among the monkeys) and other epithets generally given to the Vanaras.
He is known as Riksharaj (King of the Rikshas). Rikshas are earlier described as similar to Vanaras but in later versions of Ramayana Rikshas are described as bears. He was created by Brahma, to assist Rama in his struggle against Ravana.
Jambavana was present at the churning of the ocean, and is supposed to have circled Vamana seven times when he was acquiring the three worlds from Mahabali.