When Hanuman first entered the Ashoka Vatika in Lanka and saw a woman sleeping under a simal tree, he briefly mistook her for Sita. However, he soon realized it was Mandodari, Ravana's chief queen, who bore a resemblance to Sita. This momentary confusion highlights how Hanuman was desperately searching for any sign of Sita and how Mandodari's beauty was comparable to Sita's.