The Chief of the Army Staff (COAS) is a statutory office held by the professional head of the Indian Army (IA), the land forces branch of the Indian Armed Forces. Customarily held by a four-star general officer, the COAS is the senior-most operational officer of the IA, tasked with the roles of overseeing the overall functioning of the force during peace and wartime, committing to the preparation-cum-maintenance of the force's operational effectiveness and defending the nation's territorial integrity-cum-sovereignty. Also a permanent member of the Chiefs of Staff Committee (COSC) and the National Security Council (NSC), the COAS also bears the responsibility of advising the nation's civilian leadership i.e., the Government of India on all matters privy to the IA.
The Indian Navy (IN), the naval component of the Indian Armed Forces follows a certain hierarchy of rank designations and insignia derived from the erstwhile Royal Indian Navy (RIN).
The Chief of the Naval Staff (CNS) is the office of the professional head of the Indian Navy (IN), the naval branch of the Indian Armed Forces. Customarily held by a four-star admiral, the CNS is the senior-most operational officer of the IN, tasked with the roles of supervising the force's overall functioning during peace and wartime, along with the execution of India's strategic maritime objectives, namely, the defence of the country's maritime sovereignty around its territorial waters, and the realization of both its domestic-cum-international security interests vis-à-vis maritime vigilance across international sea lines. Also a permanent member of the Chiefs of Staff Committee (COSC) and the National Security Council (NSC), the CNS also bears the responsibility of advising the nation's civilian leadership i.e., the Government of India on all matters privy to the IN.
The Western Naval Command is one of the three command–level formations of the Indian Navy. It is headquartered in Mumbai, Maharashtra. As the senior–most of the three formations, the command is responsible for the all naval forces in the Arabian Sea and western parts of the Indian Ocean and the naval establishments on the west coast of India.
The Southern Naval Command is one of the three command-level formations of the Indian Navy. It has its headquarters in Kochi, Kerala at INS Venduruthy. It is the Training Command of the Indian Navy.
Admiral Ronald Lynsdale 'Ronnie' Pereira, PVSM, AVSM was a flag officer in the Indian Navy. He served as the ninth Chief of Naval Staff from 1979 to 1982. He is considered to be one of the architects of the modern Indian Navy.
Admiral Adhar Kumar Chatterji was an Admiral in the Indian Navy. He served as the 6th Chief of the Naval Staff, from 4 March 1966, until 28 February 1970. He was the first Indian officer of the navy to hold the rank of full Admiral. He is credited with the transformation of the Indian Navy. He made sweeping changes and restructured the navy, creating the Western and Eastern Naval Commands and the Western Fleet. Under him, the Indian Navy also entered the submarine age, with the commissioning of INS Kalvari (S23) in 1967.
AdmiralKarambir Singh, PVSM, AVSM, ADC, is a former flag officer of Indian Navy, who served as the 24th Chief of the Naval Staff (CNS). The "Grey Eagle" of the Navy, he replaced Admiral Sunil Lanba as the CNS after his retirement on 31 May 2019. Prior to his ascension, Admiral Singh served as the Vice Chief of the Naval Staff and Flag Officer Commanding-in-Chief, Eastern Naval Command.
The Vice Chief of the Naval Staff (VCNS) is a statutory position in the Indian Armed Forces, that is usually held by a three star vice admiral. The Vice Chief is the deputy of the Chief of the Naval Staff and is usually the second highest ranking officer of the Indian Navy. The current VCNS is Vice Admiral Dinesh K Tripathi who took over from Vice Admiral Sanjay Jasjit Singh on 4 January 2024.
General is a four-star general officer rank in the Indian Army. It is the highest active rank in the Indian Army. General ranks above the three-star rank of lieutenant general and below the five-star rank of field marshal, which is largely a war-time or ceremonial rank.
Air chief marshal is a four-star air officer rank in the Indian Air Force. It is the highest active rank in the Indian Air Force. Air chief marshal ranks above the three-star rank of air marshal and below the five-star rank of Marshal of the Indian Air Force, which is largely a war-time or ceremonial rank.
Air marshal is a three-star air officer rank in the Indian Air Force. It is the second-highest active rank in the Indian Air Force. Air marshal ranks above the two-star rank of air vice marshal and below the four-star rank of air chief marshal, which is held by the Chief of the Air Staff.
The Deputy Chief of the Naval Staff (DCNS) is a senior appointment in the Indian Navy. The DCNS is a PSO at Naval Headquarters in New Delhi. The office is held by a Three star officer in the rank of Vice Admiral. The current DCNS is Vice Admiral Tarun Sobti who took over Vice Admiral Sanjay Mahindru on 1 October 2023.
Vice admiral is a three-star flag officer rank in the Indian Navy. It is the second-highest active rank in the Indian Navy. Vice admiral ranks above the two-star rank of rear admiral and below the four-star rank of admiral, which is held by the Chief of the Naval Staff (CNS).
Lieutenant general is a three-star general officer rank in the Indian Army. It is the second-highest active rank in the Indian Army. Lieutenant generals rank above the two-star rank of Major General and below the four-star rank of General, which is held by the Chief of the Army Staff.
Rear admiral is a two-star flag officer rank in the Indian Navy. It is the third-highest active rank in the Indian Navy. Rear admiral ranks above the one-star rank of commodore and below the three-star rank of vice admiral.
Air vice marshal is a two-star air officer rank in the Indian Air Force. It is the third-highest active rank in the Indian Air Force. Air vice marshal ranks above the one-star rank of air commodore and below the three-star rank of air marshal.
Major general is a two-star general officer rank in the Indian Army. It is the third-highest active rank in the Indian Army. A major general ranks above the one-star rank of brigadier and below the three-star rank of lieutenant general.
Commodore is a one-star rank in the Indian Navy. Commodore ranks above the rank of captain and below the two-star rank of rear admiral. This navy rank will be abbreviated as CMDE or Cmde.
Vice Admiral Sandeep Naithani, PVSM, AVSM, VSM is a former Flag officer in the Indian Navy. He last served as the Chief of Materiel. He has earlier served as the Controller Warship Production and Acquisition from 2020 to 2021 and as the Admiral Superintendent Naval Dockyard (Mumbai) in 2018.
India 
Indian Navy 