Mbh 3.273.1a

Markandeya said, “The Muni named Visrava, who was begotten of half the soul of Pulastya, in a fit of passion, began to look upon Vaisravana with great anger. But, O monarch, Kuvera, the king of the Rakshasas, knowing that his father was angry with him, always sought to please him. And, O best of Bharata’s race, that king of kings living in Lanka, and borne upon the shoulders of men, sent three Rakshasa women to wait upon his father. Their names, O king, were Pushpotkata, Raka and Malini. And they were skilled in singing and dancing and were always assiduous in their attentions on that high-souled Rishi. And those slender-waisted ladies vied with one another, O king, in gratifying the Rishi. And that high-souled and adorable being was pleased with them and granted them boons. And to every one of them he gave princely sons according to their desire. Two sons--those foremost of Rakshasas named Kumvakarna and the Ten-headed Ravana,--both unequalled on earth in prowess, were born to Pushpotkata. And Malini had a son named Vibhishana, and Raka had twin children named Khara and Surpanakha. And Vibhishana surpassed them all in beauty. And that excellent person was very pious and assiduously performed all religious rites. But that foremost of Rakshasas, with ten heads, was the eldest to them all. And he was religious, and energetic and possessed of great strength and prowess. And the Rakshasa Kumvakarna was the most powerful in battle, for he was fierce and terrible and a thorough master of the arts of illusion. And Khara was proficient in archery, and hostile to the Brahmanas, subsisting as he did on flesh. And the fierce Surpanakha was constant source of trouble to the ascetics. And the warriors, learned in the Vedas and diligent in ceremonial rites, all lived with their father in the Gandhamadana. And there they beheld Vaisravana seated with their father, possessed of riches and borne on the shoulders of men.