Chudamani is referred to in the Sundara Khanda of the Ramayana. The divine Chudamani was in the possession of Sita. Mata Sita was held captive by Ravana in the Ashokavana of Lanka. Hanuman met Sita as an emissary of Rama. She then gave the Chudamani to Hanuman and asked Him to carry it to Sri Rama.
Chudamani is an ornament worn on the head. It was round in shape and studded with jewels and pearls.
Legend has it that the ornament was first found by Indra in the ocean. He gave it to Dasharatha, father of Sri Rama, for helping him in defeating the demons. Another version has it that Indra gave it to Dasharatha on the successful completion of an important yajna.
Chudamani became a family ornament. Dasharatha had given it to Kaushalya. She gave it to Sita who was her daughter in law.
It is stated in Ramayana that on seeing Chudamani, Sri Rama felt as if he was seeing Mata Sita herself.