According to the Adi Parva of the epic Mahabharata, Rambha and her apsaras sisters Alambusha, Mishrakeshi, Vidhyutparna, Tilottama, Aruna, Rakshita, Manorama, Subahu, Keshini, Surata and Suraja are the daughters of the sage Kashyapa and his wife Pradha.
[3] Rambha and other apsaras are frequently sent by the king of the devas, Indra, to seduce rishis (sages) and ensuring that they don't gain divine powers by self-abnegation and austerities.
[3][4] The Bala Kanda of the epic Ramayana narrates that Rambha is instructed by Indra to disturb the penance of Vishvamitra, a sage who had been previously seduced by another apsara named Menaka.
[1] In the Uttara Kanda of the Ramayana, Ravana, the king of Lanka and the half-brother of Kubera, saw Rambha on a mountain and was captivated by her beauty.
[5] O Lord, this night, Dashagriva [Ravana] scaled the Trivishtapa Peak while he was encamped on that mountain with his army and I was observed by him as I came to meet you, O Conqueror of Your Foes!