A stringed instrument of India is the SITAR, which has five letters. The SITAR is a plucked stringed instrument used mainly in Hindustani classical music. It has a long neck with twenty-one strings and a gourd-shaped resonating chamber. The SITAR is believed to have originated in the Middle East and was brought to India by the Mughals in the 16th century. It is now one of the most popular instruments in India.