Apara Ekadashi occurs during the Krishna Paksha of Jyeshtha (Trivikrama) month. 'Apara' means limitless, indicating that the merit obtained from observing this fast is boundless. It was narrated by Lord Krishna to King Yudhisthira to explain how the soul can escape severe karmic debts.
The legend speaks of a righteous king named Mahidhvaja, who had a wicked, envious brother named Vajradhvaja. Driven by jealousy, Vajradhvaja murdered the king in the dark of night and buried his body under a wild banyan tree. Due to his untimely and violent death, King Mahidhvaja became a restless, tormenting ghost (preta), living in the same tree and crying out in pain.
One day, the great Sage Dhaumya passed by the tree and saw the suffering ghost of the king. Using his spiritual vision, the sage understood the tragic event. Filled with deep compassion, Dhaumya Rishi decided to help the king. He personally observed Jyeshtha-Krishna Apara Ekadashi with full rituals and offered the entire spiritual merit of the fast to the restless ghost of Mahidhvaja.
The moment the merit was transferred, King Mahidhvaja was instantly freed from his ghostly existence. He appeared in a beautiful, glowing celestial form, expressed his deep gratitude to the sage, and ascended to the heavenly planets in a flower airplane. This story powerfully demonstrates that Apara Ekadashi is capable of delivering even those trapped in the most painful spectral realms.