Jnanasutra was born in India. According to prophesy from Vajrasattva, He went to Wu Tai Shan Mountain to remain Sri Singha for twenty-five years. Having transmitted all the oral instructions, the master Sri Singha dissolved his bodily form into a mass of light. When Jnanasutra cried out in despair and uttered songs of deep yearning, Sri Singha appeared again and bestowed him the testament. Having received this transmission, Jnanasutra discovered the secret terma in China. Then he returned India for running the dharma wheel. When Jnanasutra dissolved his bodily form into a mass of light, he departed his testament to his disciple Vimalamitra.