Anti-Submarine Warfare (ASW) is an important capability for surface, sub-surface vessels and submarines. Generally, subsurface and surface vessels use Hull Mounted Sonar for ASW mission and detection of submarines. However, Hull mounted Sonar performance is limited due to its frequency range and environmetal conditions. The shortcomings are overcome by use of low frequency Towed Array Sonar that provides long detection ranges and capability to vary depth to counter environmental conditions.