Gajendra Moksham Harikatha by Veeragandham Subba Rao గజేంద్ర మోక్షం హరికథ- వీరగంధం వెంకటసుబ్బారావు.

There was once an elephant named Gajendra who lived in a garden called Ṛtumat, which was created by Varuna. This garden was located on Mount Trikuta, the "Three-Peaked Mountain". Gajendra ruled over all the other elephants in the herd. One day, as usual, he went to the lake near by to pick lotus flowers to offer prayer to Vishnu. Suddenly, a crocodile living in the lake attacked Gajendra, and caught him by the leg. Gajendra tried for a long time to escape from the crocodile's clutches. All of his herd, relatives, and friends gathered around to help him, but in vain. The crocodile simply would not let go. When they realised that ‘death’ had come close to Gajendra, they left him alone. He trumpeted in pain and helplessness until he was hoarse. As the struggle was seemingly endless, when he had spent his last drop of energy, Gajendra called to his deity Vishnu to save him, holding a lotus up in the air as an offering.
Hearing his devotee's call and prayer, Vishnu rushed to the scene. As Gajendra sighted the god coming, he lifted the lotus with his trunk. Seeing this, Vishnu was pleased, and with his Sudharshana Chakra, he decapitated the crocodile. Gajendra prostrated himself before the deity. Vishnu informed Gajendra that he, in one of his previous births, had been the celebrated King Indradyumna, a Pandyan King a devotee of Vishnu, but due to his disrespect to the great sage Agastya, he had been cursed to be reborn as an elephant. Because Indradyumna had been devoted to Vishnu, the deity had him born as Gajendra and made him understand the concept of Kaivalya, which was beyond Svarga and Urdhva Loka, the realm of the gods. Indradyumna was to attain moksha when he (as Gajendra) left all his pride and doubt, and totally surrendered himself to Vishnu.
The prayer made by Gajendra on this occasion became a famous hymn in praise of Vishnu called the Gajendra Stuti.