The Advanced Light Torpedo (TAL) Shyena (Sanskrit: श्येन, "Falcon or Hawk") is the first indigenous advanced lightweight anti-submarine torpedo of India, developed by the Naval Science and Technological Laboratory (NSTL) of the Defence Research and Development Organisation (DRDO) for the Indian Navy. The lightweight torpedo can be launched by ships, submarines, helicopters and Ilyushin Il-38, named after the divine hawk identified with Agni.