<P> Ulūpī's former husband was slain by a Suparna and she was childless . A son named Iravan was born to Arjuna and Ulūpī . But Ulūpī's brother hated Arjuna since he destroyed the Nagas dwelling in Khandava forest and so abandoned Ulūpī and his son . </P> <P> Iravan grew in the territory of Nagas, protected by his mother . Later when Arjuna visited the region to the northeast of the Naga territories, he went and met Arjuna . He accepted him as his beloved son, and asked him to render assistance in battle when required . Iravan entered the Kurukshetra War with an excellent cavalry force driven by Naga warriors (6, 91). He participated in the war (6 - 84, 91) and was slain by the Rakshasa Alamvusa, the son of Risyasringa (6, 91). </P> <Ul> <Li> Ulūpī is mentioned as interacting with Arjuna's another son Vabhruvahana, born of another wife Chitrangada at (14, 79). </Li> <Li> Ulūpī and Chitrangada are mentioned as being accepted into the palace of Hastinapura at (14, 88) </Li> <Li> Ulūpī and Chitrangada are mentioned with other wives of the Pandavas at (15, 1). </Li> <Li> Ulūpī and Chitrangada are mentioned as departing, when Pandavas set for their last journey (17, 1). </Li> <Li> A weapon used in Kurukshetra War is named a Naga weapon (8, 53). </Li> </Ul> <Li> Ulūpī is mentioned as interacting with Arjuna's another son Vabhruvahana, born of another wife Chitrangada at (14, 79). </Li>

What is the difference between naga and sarpa