In Jain tradition, Skandhak Muni is known as one of the chief disciples (Gandharas) of Lord Mahavira. According to Jain scriptures, the name of Skandhak Muni's sister is Jyeshtha.

She is mentioned in Jain texts as having played a role in the life of Skandhak Muni, especially in the stories regarding his renunciation and eventual discipleship under Lord Mahavira.