Kunthunath was the seventeenth Jain Tirthankar of the present age (Avasarpini). According to Jain beliefs, he became a siddha, a liberated soul which has destroyed all of its karma. Kunthunath was born to King Shursen Raja and Queen Srirani Rani at Hastinapur in the Ikshvaku clan. His birth date was the 14th day of the Vaishakh Krishna month of the Indian calendar. Bhagvan Kunthunath dev was born in Gajpur/Hastinapur, on 14th day of the dark half of the month of Vaishak. His father name was King Shursen and Mother name was Shri Devi. After long span of life time, he took diksha 5th day of the dark half of the month of Vaishak along with 1000 other men's.
After 16years of diksha and worldly life abandonment Lord Kunthunath attained (kevalgyan) salvation on 3rd day of the dark half of the month of Chaitra and constellation of Krithika. On the 1st day of the dark half of the month of Vaishak, Bhagwan Kunthunath, along with other 1000 saints was liberated and attained nirvana on Sammet Shikhar (mountain).
In his previous incarnation Lord Kunthunath's soul was King Simhavaha of Khadgi town in Mahavideh area. He was a powerful and illustrious king. He had a bend for spiritual practices and after handling over the responsibilities of the kingdom to his son, he took diksha from Samvaracharya and did deep spiritual practices. As a result of his vigorous penance and devotion for the Arhant, he earned Tirthankar-nam-and-gotra. Completing his age he reincarnated in the Sarvarthasiddha dimension of gods.
From the dimension of gods he descended into the womb of queen Shri Devi, wife of king Shursen of Hastinapur. At the dawn of the ninth day of Shravan Krishna, queen saw the auspicious fourteen (sixteen according to the digamabar jain beliefs) dreams. This indicated that the coming soul would be a conqueror – a chakravarti king. And these dreams also indicated that he would be a Tirthankar. On the 14th day of the Vaishakh Krishna month of the Hindu calendar, queen Shridevi gave birth to a son.
During her pregnancy the queen saw a heap of gemstones known as Kunthu in her dreams. This inspired the king to name him Kunthu Kumar.
The pious deeds of earlier birth resulted in unlimited power and grandeur for Kunthu Kumar. After Shursen became an ascetic, Kunthu Kumar ascended the throne. Soon the disc weapon "Chakra" appeared in his armory and he proceeded to conquer the world with his mighty army. Without any confrontation all the kings accepted his sovereignty and Kunthunath became a Chakravarti. There was no blood shed anywhere and after conquering almost entire world, Kunthunath returned Hastinapur. After returning to his kingdom, he announced 12 years of the victory celebrations. He excused all the taxes taken from the people and took care that no body is in trouble in his reign. Many mighty kings and princes used to be present in his court all the time.
He attained omniscience on the third day of the bright half of the month of Chaitra under a Tilak tree in Sahasramara jungle outside Hastinapur. His first discourse was on the subject of "inner purity".
As an omniscient ascetic Kunthunath wandered around and preached true religion for a very long period. He then went to Sammed shikharji and observed a month long fast before breathing his last. His followers were deeply devoted to him. As such, a large crowd was present at the moment of his Nirvana and cremation ceremony. They witnessed the ceremony with heavy hearts and tear filled eyes. The mortal remains of Bhagavan Kunthunath were taken away by the gods for worship.