Ravana was a demon king of Lanka and the chief antagonist in the Hindu epic Ramayana and its adaptations
In the Ramayana, Ravana is described to be the eldest son of sage Vishrava and Rakshasi Kaikeshi. He abducted Rama's wife Sita and took her to his kingdom of Lanka, where he held her as a prisoner in Ashok Vatika, and also expressed a desire to marry her. Later, Rama, with the support of vanara King Sugriva and his army of vanars, attacked Ravana in Lanka. They killed Ravana and Rama rescued his beloved wife Sita.
Ravana is widely considered to be a symbol of evil, but he also had many qualities that made him a learned scholar. He was well-versed in the six shastras and the four Vedas. Ravana is considered to be the most revered devotee of Shiva. Images of Ravana are seen associated with Shiva at some places. He also appears in the Buddhist Mahayana text Laṅkāvatāra Sūtra, in Buddhist Ramayanas and Jatakas, as well as in Jain Ramayanas. In some scriptures, he is depicted as one of Vishnu’s cursed doorkeepers.