Once Brahma realized that being engaged in the work of creation, he was unable to devote time in the service of God. So creating a form of himself, he arrived on earth as Jambvan, the ursine king. Serving the God, reflecting his plays and meditating on the God were the routine of Jambvan.

In Satya yuga, the god had arrived in Vamana form. At that time, King Bali was ruling the southern country of the great Jambudwipa. He was very benevolent. But Devaraj Indra began to feel threatened by Bali's benevolence. So he insisted Lord Vishnu to keep a check on Bali. Thus at the insistence of Indra, Lord Vishnu appeared in Vamana(dwarf) form to test Bali's benevolence. Bali was performing a grand oblation then. Seeing a dwarf Brahmana (Vamana), he greeted him and asked him what he wanted from him. Vamana replied that it will be sufficient for him to have 3 steps of the land. Bali gladly agreed to give him the 3 steps of land and asked the Vamana to measure as much land as he could in his 3 steps. Thus taking his supreme form, Vamana measured the whole of the earth and the heaven in just 2 steps. Now there was no room for his third step. So Bali offered his own head to put the third step. So Vamana put his third step on Bali's head and crushed him down. Seeing the incarnation of God, Jambvan was the most exhilarated person. He went in every direction and heralded the news of God's arrival. Then in no time, he went around God seven times.

In Treta yuga, Jambvan became the minister of Sugreev. being superior in intelligence, strength and policies. He always used to give the proper advice to Sugreev. During Sita's search, when the simian party reached the seashore and sat there in desperation, it was Jambvan who reminded Hanuman of his powers and inspired him to go to Lanka. Lord Rama always consulted Jambvan before taking any decision. During the battle, Jambvan proved to be very helpful to Lord Rama. Ultimately, Rama emerged victorious and they all returned to Ayodhya. After the crowning ceremony of Lord Rama was over ,it was time to part. But Jambvan was very reluctant to leave. He parted with God only on one condition, that he would give him a sight of himself again in Dwapar yuga. In Dwapar yuga, one Satrajit had worshipped Surya and got Syamantak Mani(gem). One day Shri Krishna asked him to give that gem to Ugrasena. But out of greed, Satrajit did not accept the proposal. Then, by chance, Satrajit's brother Prasanjit wore that gem around his neck and went out on a hunting expedition. In the forests, a lion killed him. The lion took the gem to its cave. There, Jambvan killed the lion and gave the gem to his children to play with.

Back in Dwarka, when Prasanjit did not return from hunting, Satrajit began to worry and suspected Shri Krishna of foul play. Rumour spread slowly. To avoid the blemishes, Lord Krishna himself set out to search for the gem. In the forest, he first found a horse and then the dead lion. So he entered the cave of Jambvan. Seeing a stranger, Jambvan's children began to cry out of fear. Hearing their cries, Jambvan arrived there and saw Krishna. Thus Jambvan began to fight with Lord Krishna. Their duel lasted continuously for 27 days without rest. At last Jambvan could no longer bear lord Krishna's blows. Jambvan thought: " He who can defeat me cannot be a God or demon. Indeed, he might be my lord Shri Rama himself. Thinking thus, Jambvan gave up fighting and as soon as he stopped, Lord Rama appeared before him with a bow and arrow. Jambvan fell flat at his feet .Stroking his head, Lord Krishna did away with all of his pain, fatigue and suffering. Then and there, Jambvan gave his daughter Jambvati to the service of the Lord and also the gem. Thus, Jambvan dedicated all of his life at the feet of the God.