Question: ICGS "Samrat" (CG47) is an Indian Coast Guard Advanced Off Shore Patrol Vessel (OPV), second of its class which has been indigenously designed and built by Goa Shipyard Limited, the  vessel was commissioned to coast guard service on 21 January 2009 by A. K. Antony, by the former head of the Ministry of Defence of the Government of India, the position is called?
Context: The "Samarth"-class offshore patrol vessel are a series of six offshore patrol vessels (OPV) being built by Goa Shipyard Limited for the Indian Coast Guard.  They are an improvement over the earlier "Vishwast"-class OPV's. Goa Shipyard Limited (GSL) (IAST: "Govā șipayārḍ limiṭeḍ") is one of India's best shipyards and designated "mini-Ratna" by the Government of India.  It is located on the West Coast of India at Vasco da Gama, Goa at .  It was established in 1957, originally by the colonial government of the Portuguese in India, as the "Estaleiros Navais de Goa" , to build barges to be used in Goa's growing mining industry, which took off after the establishment of India's blockade of Goa in 1955.  In the wake of Portugal's defeat and unconditional surrender to India following the 1961 Indian annexation of Goa, it was requisitioned to manufacture warships for the Indian Navy and the Indian Coast Guard. Sarojini Naidu Class Fast Patrol Vessels are series of seven Mid Shore Patrol Vessels built by Goa Shipyard Limited at Vasco da Gama, Goa for the Indian Coast Guard produced between 2002 and 2006. INS "Saryu" 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. The "Vishwast"-class offshore patrol vessels are series of three offshore patrol vessels built by Goa Shipyard Limited, Vasco da Gama, Goa for the Indian Coast Guard. ICGS "Samarth" (Hindi:समरथ) is the Indian Coast Guard's latest and largest Offshore Patrol Vessel (OPV).  "Samarth" is first in the series of six 105m offshore patrol vessels and has been built by Goa Shipyard Limited.  The vessel was commissioned to coast guard service on 10 November 2015 by Defence Minister Manohar Parrikar.  "Samarth" is based in Goa and will be extensively used for Exclusive Economic Zone and other duties as it is set to be exploited extensively on the Western Seaboard. ICGS "Samrat" (CG47) is an Indian Coast Guard Advanced Off Shore Patrol Vessel (OPV), second of its class which has been indigenously designed and built by Goa Shipyard Limited.  The vessel was commissioned to coast guard service on 21 January 2009 by Former Defence Minister A. K. Antony.  "Samrat" is based in Goa and will be extensively used for Exclusive Economic Zone and other duties as it is set to be exploited extensively on the Western Seaboard. The Minister of Defence is the head of the Ministry of Defence of the Government of India.  They are often assisted by a Minister of State for Defence and less-commonly, the lower-ranked Deputy Minister of Defence.  The defence minister additionally serves as President of the Institute for Defence Studies and Analyses, and as Chancellor of the Defence Institute of Advanced Technology and of the National Defence University. The Director General of the Indian Coast Guard (DG ICG) is the head of the Indian Coast Guard.  The DG ICG has their office in the Coast Guard Headquarters (CGHQ) in New Delhi.  Appointed by the Government of India, the DG ICG reports to the Minister of Defence.  The Director General is assisted by four Deputy Directors General, each holding the rank of inspector-general, and other senior officers heading various staff divisions.  The Additional Director General of the ICG serves as the second-in-command to the Director General.  The post of Director General of the Indian Coast Guard is held by a three-star rank holder as a position and is not a rank in itself.  It is a Commander-in-Chief grade and is equivalent to Vice Admiral of the Indian Navy, Lieutenant General of the Indian Army and the Air Marshal of the Indian Air Force.  The rank of Additional Director General of the Indian Coast Guard is equivalent to vice admiral of Higher Administrative Grade of the Indian Navy. "Priyadarshini"-class patrol vessels (also referred to as "Jija Bai" Mod 1 class) are a series of 8 mid-shore fast patrol boats, built by Garden Reach Shipbuilders & Engineers, Kolkata and Goa Shipyard Limited, Vasco da Gama, Goa for Indian Coast Guard between 1991 and 1998.
Answer: Minister of Defence