Nanggala has participated in several naval exercises, including the Cooperation Afloat Readiness and Training exercises in 2002 and 2015.[13][14] In 2004, the boat participated in the Joint Marine Operations Exercise held in the Indian Ocean, during which it sank KRI Rakata, a decommisioned Indonesian ship first launched in 1942.[13][15] In 2012, the boat conducted a passing exercise with USS Oklahoma City, accompanied by KRI Diponegoro [id] and a Bölkow-Blohm helicopter.[16]