This is a list of accidents that have taken place in the Indian Navy. The list may be incomplete for years before 2000. Article in India Today reported that since 1990, the Indian Navy has lost one warship in peacetime every five years. Since 2004, it has lost one naval combatant every two years. While peacetime losses of warships are not uncommon, the magazine mentioned that few global navies have such a dubious record. According to the Times of India, while some of accidents reported since August 2013 were serious, many of them were trivial incidents exaggerated in public. These accidents have been attributed to ageing ships in need of maintenance (refit/repairs delayed in spite of laid down rules for refit cycles), delayed acquisitions by the Ministry of Defence, and human error. However naval commentators also argue that as India's large navy of 160 ships clocks around 12,000 ship-days at sea every year, in varied waters and weather, some incidents are inevitable. Captains of erring ships are dismissed from their command following an enquiry. 1990 - 2000 August 1990 : , an Arnala-class corvette sank during an anti-submarine warfare exercise on the return journey to Visakhapatnam from the Andaman Islands. A small leak in the aft steering led to flooding and engine shutdown (considered routine amid deferred maintenance). However it could not be repaired and flooded and sank amid choppy seas. 15 sailors died. 2000 - 2010 December 2005: , a , collided with a commercial vessel, Ambuja Laxmi, outside Mumbai harbor while returning from a training mission. This class of ship uses stealth technology and a special hull design to ensure a reduced radar cross section. Radar systems installed by the port authorities and those on board Ambuja Laxmi were unable to detect INS Trishul and prevent the side on collision. No casualties were reported. April 2006: , a , sank after colliding with MV Rajiv Gandhi about away from the Goa coast. No casualties were reported. The commanding officer of the ship, Lieutenant Commander Yogesh Tripathi was found guilty of negligence by an Indian Navy court-martial and removed from Command. September 2006: , a , collided with a Shipping Corporation of India merchant vessel, MV Kiti, off the coast of Mumbai. There were no casualties, but the Dunagiri suffered damage and required extensive repairs. January 2008: , a , collided with a foreign merchant vessel MV Leeds Castle