The Kombu (Tamil:கொம்பு, Malayalam: കൊമ്പ്) or Kompu also known as the Kombu Pattu is a wind instrument (a kind of Natural Horn) in Tamil Nadu and Kerala.[1][2][3] Usually played along with Panchavadyam, Pandi Melam, Panchari melam etc. This musical instrument is usually seen in south India. The instrument is like a long horn (Kombu in Tamil and Malayalam).
In ancient days kombu played during war along with Murasu.[4]
The size of a kombu can vary but it is approx 15 centimetres wide and 132 centimetres long. It is usually made of brass and costs about four thousand to five thousand. It is mostly used in southern India.