INS Saryu ( P57 ) INS " Saryu " ( P57 ) is the first Saryu class patrol vessel of the Indian Navy , designed and constructed indigenously by the Goa Shipyard Limited . The ship is home - ported at Port Blair , under the Andaman and Nicobar Command ( ANC ) . She is the largest offshore patrol vessel in the navy . Design and development . The Saryu class patrol vessel s were ordered for the navy by the Ministry of Defence in December 2008 , for performing coastal patrol . Goa Shipyard Limited ( GSL ) became the first Indian shipyard to have autochthonously designed and constructed this class of warship . INS " Saryu " is the most advanced vessel to be constructed by GSL in terms of design , performance and quality . The ship has been designed by an in - house team and was built at the cost of . Construction of the vessel took three and a half years , and was delayed due to late supply of gearboxes by the Indian supplier . A new order for the gearboxes was then placed with another manufacturer , which delivered them in early December 2011 . " Saryu " was then completed by November 2012 . Three more vessels of the class are being constructed for the navy , and all will be delivered by 18 months ( from the commissioning of " Saryu " ) , each at an interval of six months . INS " Saryu " was launched on 30 March 2009 by the Chief of Naval Staff , Admiral Sureesh Mehta . The navy took delivery of the ship on 21 December 2012 and she was commissioned on 21 January 2013 at Vasco da Gama , by the Commander - in - Chief of the Andaman and Nicobar Command ( ANC ) , Air Marshal P . K . Roy . Description . The ship has a range of , and can remain deployed at sea for two months without replenishment . She is crewed by eight officers and 105 sailors . She is armed with an Italian - made OTO Melara gun ; two Russian - made AK - 630 six - barrelled close - in weapon system s ( CIWS ) , and six self - protection chaff launchers , all of which are controlled by an on - board electro - optic fire - control system . She also has navigational and early warning radar s , and an integrated electronic warfare system . She carries two rigid inflatable fast - motor boats alongside a multi - role helicopter like the HAL Dhruv or HAL Chetak . Propulsion and power are electronically controlled by a remote - control system , and the power management system is automatic . A fully integrated LAN and a CCTV management system is used to increase efficiency of the crew and optimally utilise the ship ' s equipment . Propulsion is provided by two SEMT Pielstick diesel engines , which are the largest engines of their type in the Indian Navy , and propel the ship to more than . Service history . " Saryu " is home - ported at Port Blair in the Andaman and Nicobar Islands , under the ANC . Her first commanding officer is Commander Amanpreet Singh , who will be commanding a ship for the second time . The ship will enhance the off - shore surveillance and maritime patrol ling capability of the A & N command , where she will be used to patrol India ' s exclusive economic zone ( EEZ ) and sea lines of communication . She will also perform anti - piracy patrols and fleet - support operations like providing security to off - shore installations and escorting high - value assets .