Ashoka Vatika
Ashoka Vatika is a grove in Lanka that is located in the kingdom of the rakshasa king Ravana. It is mentioned in the Vishnu Purana and the Hindu epic Ramayana of Valmiki, and all subsequent versions, including the Ramacharitamanas written by Tulsidas, where it finds mention in the Sundara Kanda. The Vatika has garden houses around it, built by Vishvakarma himself.
Literature
It was the location where Sita, the wife of Rama, was held captive by Ravana after her abduction, also because she refused to stay in Ravana's palace and preferred to stay under a simsapa tree in Ashoka Vatika. It was here that Ravana's wife Mandodari came to meet her and also where Hanuman met her for the first time, and identified himself with the finger ring of Rama.Sita stayed at Ashoka Vatika until the end of the epic battle between Rama and Ravana, which resulted in the destruction of Ravana himself and most of this clan. Much of the Ashoka Vatika was destroyed by Hanuman when he first visited Lanka searching for Sita. Also destroyed was the Pramda Vana at the centre of the Ashoka Vatika.