Sukka was born at Rajagaha in the family of a rich householder. When she attained years of discretion, she believed in the Master's teaching and became a lay disciple. One day she heard Dhammadinna preach and was so greatly moved that she renounced the world and followed Dhammadinna.
She performed all the exercises for acquiring insight and very soon attained Arahantship with patisambhida. Thereupon she became a great preacher and was attended by 500 bhikkhus. One day, along with the other bhikkhunis, she went to the hermitage of the bhikkhunis and taught the Buddha's doctrine in such a way that everybody listened to her with rapt attention; even the tree-spirit was so much moved that it began to praise her. At this the people were excited and came to the sister and listened attentively.