The venu is one of the ancient transverse flutes of Indian classical music. It is an aerophone typically made from bamboo, that is a side blown wind instrument. It continues to be in use in the South Indian Carnatic music tradition. It is referred to as nadi and tunava in the Rigveda and other Vedic texts of Hinduism. In northern Indian music, a similar flute is called bansuri. In the south, it is also called by various other names such as pullanguḻal (புல்லாங்குழல்) in Tamil, oodakuḻal (ഓടകുഴൽ) or kurungu kuḻal in Malayalam (Kerala) and ಕೊಳಲು (koḷalu) or ಮುರಳಿ (muraļi) in Kannada (Karnataka). It is known as pillana grōvi or vēṇuvu (వేణువు) in Telugu. It is also called as Carnatic Flute.

Indian classical music is the classical music of the Indian subcontinent. It is generally described using terms like Marg Sangeet and Shastriya Sangeet. It has two major traditions: the North Indian classical music known as Hindustani and the South Indian expression known as Carnatic. These traditions were not distinct until about the 15th century. During the period of Mughal rule of the Indian subcontinent, the traditions separated and evolved into distinct forms. Hindustani music emphasizes improvisation and exploration of all aspects of a raga, while Carnatic performances tend to be short composition-based. However, the two systems continue to have more common features than differences. Another unique classical music tradition from Eastern part of India, i. e. Odissi music has evolved since two thousand years ago.