Son of Rudraketu, an asura. This asura terrorized the three worlds by his wicked and cruel deeds. When the wickedness and cruelty of this asura became unbearable Gaṇapati incarnated in the house of Kaśyapa to protect the three worlds. Knowing this Narāntaka resorted to various means to kill Gaṇapati. But his attempts were futile. Finally he was killed by Gaṇapati.
[Gaṇeśa Purāṇa] .
NARĀNTAKA I A captain of the army of Rāvaṇa. It is stated in Agni Purāṇa, Chapter 10, that the captains of Rāvaṇa, viz., Kumbha, Nikumbha, Makarākṣa, Mahodara, Mahāpārśva, Matta, Unmatta, Praghāsa, Bhāsakarṇa, Virūpākṣa, Devāntaka, Narāntaka, Triśiras, Atikāya and other Rākṣasas fought on the side of Rāvaṇa against Śrī Rāma and that all of them were killed. Of these Devāntaka and Narāntaka were mighty and valiant warriors. Aṅgada killed Narāntaka after a fierce battle.
[Vālmīki Rāmāyaṇa, Yuddha Kāṇḍa, Chapter 69] .