The Kombu (Tamil:கொம்பு) or Kompu also known as the Kombu Pattu is a wind instrument (a kind of Natural Horn) in Tamil nadu and Kerala. 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 language).
In ancient days kombu played during war along with Murasu.