Lanka (Sanskrit: लंका Sri lankā meaning "respected island", Sinhala: ලංකාපුර (Langkapura), Malay: Langkapuri, Tamil: Ilankai, Javanese and Indonesian: Alengka or Ngalengka) is the name given in Hindu mythology to the island fortress capital of the legendary king Ravana in the great Hindu epics, the Ramayana and the Mahabharata. The fortress was situated on a plateau between three mountain peaks known as the Trikuta Mountains. The ancient City of Lankapura is thought to have been burnt down by Lord Hanuman. After the King Ravana was killed by Lord Rama with the help of the former's brother Vibhishana, Vibhishana was crowned King of Lankapura by Lord Rama after which he ruled the kingdom.
His descendants ruled the kingdom even during the period of the Pandavas. According to the epic, the Mahabharata, the Pandava Sahadeva had visited this kingdom during his southern military campaign for the Rajasuya sacrifice of Pandava king Yudhisthira.
Read more about Lanka: Gods of Lanka, Rulers of Lanka, Rama's Invasion and Conquest of Lanka, Lanka, Sri Lanka, and Possible Locations, Description, References To Lanka in The Mahabharata