Originally posted by: _Namita_
Google to the rescue again:
According to legend, Ravana was an ardent devotee of the Hindu god Shiva, and served him using the ravanahatha.[5] In the Hindu Ramayana epic, after the war between Rama and Ravana, Hanuman picked up a ravanahatha and returned to North India. In India, the ravanahatha is still played in Rajasthan. From India, the ravanahatha traveled westwards to the Middle East and Europe, where in the 9th century, it came to be called the Ravan strong. Some use to say that the Ravanahatha brought from Sri Lanka to India by Lord Hanuman.[6]