In Indian mythology, there are seven immortals, who are also known as Sat Chiranjeevi. These characters are integral to Indian mythology and Jambavant is believed to longest living entity.
Jambavant is a famous character in Indian mythology. He is believed to be created by Brahma to help Rama fight Ravana. He is also an immortal entity. His presence is found at number of places, in the times of Rama, Shri Krishna and Bali. He was also present at the time of churning pf ocean.
Jambavant in his previous life was the King of the Himalayas who had incarnated as a bear in order to serve Lord Rama. He received a boon from Lord Rama that he would have a long life, and have the strength of ten million lions. In the epic Ramayana, Jambavantha 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. In the Mahabharata, Jambavantha had killed a lion, who had acquired a gem called Syamantaka from Prasena after killing him. Krishna was suspected of killing Prasena for the jewel, so he tracked Prasena’s steps until he learned that he had been killed by a lion who had been killed by a bear. Krishna tracked Jambavantha to his cave and a fight ensued. After eighteen days, realizing who Krishna was, Jambavantha submitted. He gave Krishna the gem and also presented him his daughter Jambavati, who became one of Krishna’s wives.
Jambavant, together with Parasuram and Hanuman, is considered to be one of the few to have been present for both Ram and Krishna avatars. Said to have been present for the churning of the ocean and thus witness to the Kurma avatar, and further the Vaman avatar, Jambavan may well be the longest lived of the chiranjivis and have been witness to nine avatars.