Military of India

The Indian Armed Forces are the military forces of the Republic of India. It consists of three professional uniformed services: the Indian Army, Indian Navy, and Indian Air Force.—
— Additionally, the Indian Armed Forces are supported by the Central Armed Police Forces, Assam Rifles, Indian Coast Guard and Special Frontier Force and various inter-service commands and institutions such as the Strategic Forces Command, the Andaman and Nicobar Command and the Integrated Defence Staff. The President of India is the Supreme Commander of the Indian Armed Forces but the executive authority and responsibility for national security is vested in the Prime Minister of India and their chosen Cabinet Ministers. The Indian Armed Forces are under the management of the Ministry of Defence of the Government of India. With strength of over 1.4 million active personnel, it is the world's second-largest military force and has the world's largest volunteer army. It also has the third-largest defence budget in the world. The Global Firepower Index report lists it as the fourth most-powerful military.

The Indian Armed Forces have been engaged in a number of major military operations, including: the Indo-Pakistani wars of 1947, 1965 and 1971, the Portuguese-Indian War, the Sino-Indian War, the 1967 Cho La incident, the 1987 Sino-Indian skirmish, the Kargil War, and the Siachen conflict among others. India honours its armed forces and military personnel annually on Armed Forces Flag Day, 7 December. Armed with the nuclear triad, the Indian armed forces are steadily undergoing modernisation, with investments in areas such as futuristic soldier systems and missile defence systems.

The Department of Defence Production of the Ministry of Defence is responsible for the indigenous production of equipment used by the Indian Armed Forces. It comprises 16 Defence PSUs namely: HAL, BEL, BEML, BDL, MDL, GSL, GRSE, Midhani, AWEIL, GIL, TCL, AVNL, MIL, YIL and IOL. India remains one of the largest importer of defence equipment with Russia, Israel, France and the United States being the top foreign suppliers of military equipment.—
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— The Government of India, as part of the Make in India initiative, seeks to indigenise manufacturing and reduce dependence on imports for defence.

History

India has one of the longest military histories, dating back several millennia. The first reference to armies is found in the Vedas as well as the epics ''Ramayana'' and '' Mahabaratha''. Classical Indian texts on archery in particular, and martial arts in general are known as Dhanurveda.

Ancient to medieval era

Indian maritime history dates back 5,000 years. The first tidal dock is believed to have been built at Lothal around 2300 BC during the Indus Valley civilisation period, near the present day port of Mangrol on the Gujarat coast. The Rig Veda written around 1500 BC, credits Varuna with knowledge of the ocean routes and describes naval expeditions. There is reference to the side wings of a vessel called ''Plava'', which gives the ship stability in storm conditions. A compass, ''Matsya yantra'' was used for navigation in the fourth and fifth century AD. The earliest known reference to an organisation devoted to ships in ancient India is in the Mauryan Empire from the 4th century BC. Powerful militaries included those of the: Maurya, Satavahana, Chola, Vijayanagara, Mughal and Maratha empires. Emperor Chandragupta Maurya's mentor and advisor Chanakya's ''Arthashastra'' devotes a full chapter on the state department of waterways under ''navadhyaksha'' (Sanskrit for Superintendent of ships) . The term, ''nava dvipantaragamanam'' (Sanskrit for "sailing to other lands by ships," i.e. exploration) appears in this book in addition to appearing in the Vedic text, ''Baudhayana Dharmashastra'' as the interpretation of the term, ''Samudrasamyanam''.

Sea lanes between India and neighbouring lands were used for trade for many centuries, and are responsible for the widespread influence of Indian Culture on other societies. The Cholas excelled in foreign trade and maritime activity, extending their influence overseas to China and Southeast Asia. During the 17th and 18th centuries, the Maratha and Kerala fleets were expanded, and became the most powerful Naval Forces in the subcontinent, defeating European navies at various times (''See the Battle of Colachel''). The fleet review of the Maratha navy, at which the ships ''Pal'' and ''Qalbat'' participated, took place at the Ratnagiri fort. The Maratha Kanhoji Angre, and Kunjali Marakkar, the Naval chief of Saamoothiri were two notable naval chiefs of the period.

British India (1857 to 1947)

The Royal Indian Navy was first established by the British while much of India was under the control of the East India Company. In 1892, it became a maritime component as the Royal Indian Marine (RIM).

During World War I the Indian Army contributed a number of divisions and independent brigades to the European, Mediterranean and Middle Eastern theatres of war. One million Indian troops served overseas; 62,000 died and another 67,000 were wounded. In total, 74,187 Indian soldiers died during the war. It fought against the German Empire in German East Africa and on the Western Front. Indian divisions were also sent to Egypt, Gallipoli and nearly 700,000 served in Mesopotamia against the Ottoman Empire.

Following WWI, the Indian Armed Forces underwent significant transformation. In 1928, Engineer Sub-lieutenant D. N. Mukherji became the first Indian to receive a commission in the Royal Indian Marine. In 1932, the Indian Air Force was established as an auxiliary air force within RAF India; two years later, the RIM was upgraded to the status of a naval service as the Royal Indian Navy (RIN).

Though the gradual "Indianisation" of the officer corps began after WWI, at the outbreak of war in 1939, there were no Indian flag, general or air officers in the armed services. The highest-ranking Indian officers were those serving in the non-combatant Indian Medical Service, who held no rank higher than colonel; in the regular Indian Army, there were no Indian officers above the rank of major. The Royal Indian Navy had no Indian senior line officers and only a single Indian senior engineer officer, while the Indian Air Force had no Indian senior officers in 1939, with the highest-ranking Indian air force officer a flight lieutenant.

In World War II, the Indian Army began the war in 1939 with just under 200,000 men. By the end of the war it had become the largest volunteer army in history, rising to over 2.5 million men by August 1945. Serving in divisions of infantry, armour and a fledgling airborne forces, they fought on three continents in Africa, Europe and Asia. The Indian Army fought in Ethiopia against the Italian Army, in Egypt, Libya and Tunisia against both the Italian and German Army, and, after the Italian surrender, against the German Army in Italy. However, the bulk of the Indian Army was committed to fighting the Japanese Army, first during the British defeats in Malaya and the retreat from Burma to the Indian border; later, after resting and refitting for the victorious advance back into Burma, as part of the largest British Empire army ever formed. These campaigns cost the lives of over 36,000 Indian servicemen, while another 34,354 were wounded; 67,340 became prisoners of war. Their valour was recognised with the award of some 4,000 decorations, and 38 members of the Indian Army were awarded the Victoria Cross or the George Cross.

The demands of war and increasing recognition that the era of British dominance in the subcontinent was ending increased the pace of "Indianisation." In 1940, Subroto Mukherjee (later the first Indian C-in-C and Chief of the Air Staff) became the first Indian to command an air force squadron and attain the (albeit acting) rank of squadron leader. In July 1941, Indian Medical Service officer Hiraji Cursetji became one of the first Indian officers to be promoted to substantive general officer rank. During the war, several Indian Army officers, notably Kodandera M. Cariappa, S. M. Shrinagesh and Kodandera Subayya Thimayya, all of whom would subsequently command the Indian Army, achieved distinction as the first Indian battalion and brigade commanders. On 1 May 1945, Cariappa became the first Indian officer to be promoted to brigadier.

At the end of hostilities in 1945, the Indian Army's officer corps included Indian Medical Service officer Hiraji Cursetji as its sole Indian major-general, one IMS brigadier, three Indian brigadiers in combatant arms and 220 other Indian officers in the temporary or acting ranks of colonel and lieutenant-colonel. From October 1945, the granting of regular commissions in the Indian Armed Forces was restricted to Indians, though provisions were made for the continued secondment of British officers for as long as was deemed necessary. In 1946, sailors of the Royal Indian Navy mutinied on board ships and in shore establishments. A total of 78 ships, 20 shore establishments and 20,000 sailors were involved in the rebellion, which had an impact across India. Indianization of the armed forces nevertheless continued to progress. On 15 May 1947, Subroto Mukherjee became the first Indian air officer with the acting rank of air commodore, in the appointment of Deputy Assistant to the Air Officer Commanding (Administration). On 21 July, H.M.S. Choudhry and Bhaskar Sadashiv Soman, both of whom would eventually command the Pakistani and Indian Navies, respectively, became the first Indian Royal Indian Navy officers to be promoted to acting captain. On 30 July, Brigadiers K.M. Cariappa, Muhammad Akbar Khan and Maharaj Shri Rajendrasinhji Jadeja were promoted major-generals, the first Indian general officers in a combat arm of the Indian Army.

Dominion of India (1947–1950)

The period immediately following Indian independence was a traumatic time for India and her armed services. Along with the newly independent India, the Indian Armed Forces were forcibly divided between India and Pakistan, with ships, divisions and aircraft allocated to the respective Dominions. Following partition, on 15 August 1947, the Indian Armed Forces comprised:

*The Royal Indian Navy (RIN): Four sloops, two frigates, 12 minesweepers, one corvette, one survey vessel, four armed trawlers, four motor minesweepers, four harbour defence launches and all landing craft of the pre-Independence RIN.
*Indian Army: 15 infantry regiments, 12 armoured corps units, 18.5 artillery regiments and 61 engineer units. Of the Nepalese Gorkha regiments formerly attached to the British Indian Army, the 1st, 3rd, 4th, 5th (Royal), 8th and 9th Gorkha Rifles remained in Indian service, with the first and second battalions of the 2nd, 6th, 7th and 10th Gorkha Rifles placed in British Army service.
*The Royal Indian Air Force (RIAF): Seven fighter squadrons of Hawker Tempest II aircraft and one transport squadron of Douglas Dakota III/IV aircraft.

By the end of 1947, there were a total of 13 Indian major-generals and 30 Indian brigadiers, with all three army commands being led by Indian officers by October 1948, at which time only 260 British officers remained in the new Indian Army as advisers or in posts requiring certain technical abilities. With effect from April 1948, the former Viceroy's Commissioned Officers (VCO) were re-designated Junior Commissioned Officers (JCO), the distinction between King's Commissioned Indian Officers (KCIO) and Indian Commissioned Officers (ICO) was abolished and Indian Other Ranks were re-designated as "other ranks."

During this period, the armed forces of India were involved in a number of significant military operations, notably the Indo-Pakistani War of 1947 and Operation Polo, the code name of a military operation in September 1948 where the Indian Armed Forces invaded the State of Hyderabad and overthrew its Nizam, annexing the state into the Indian Union. On 15 January 1949, General K. M. Cariappa was appointed the first Indian Commander-in-Chief of the Indian army. In February 1949, the Indian government repealed colonial-era legislation which mandated limits on the recruitment of certain ethnic groups into the armed forces.

Republic of India (1950 to present)

Upon India becoming a sovereign republic on 26 January 1950, some of the last vestiges of British rule – such as rank badges, imperial crowns, British ensigns and "Royal" monikers – were dropped and replaced with the Indian tricolour and the Lion Capital of Asoka. On 1 April 1951, the remaining units of Imperial Service Troops of the former princely states were integrated with the regular Indian Army, though only a percentage of the former princely states forces were found capable enough to be retained in active service. While India had become a republic, British officers seconded from the British Armed Forces continued to hold senior positions in the Indian Armed Forces into the early 1960s. On 1 April 1954, Air Marshal Subroto Mukherjee became the first Indian Commander-in-Chief of the Indian Air Force. Effective from 1 April 1955, a Parliamentary Act, the ''Commanders-In-Chiefs (Change in Designation) Act'', re-designated the office of Commander-in-Chief as the Chief of Staff of each branch. Not until 1958 would the last British chief of staff that of the Indian Navy, be succeeded by an Indian. On 22 April of that year, Vice Admiral Ram Dass Katari became the first Indian Chief of Naval Staff. The Chiefs of Staff of the Indian Air Force and the Indian Navy were upgraded to four-star rank on par with the Chief of Army Staff in 1966 and 1968, respectively.

In 1961 tensions rose between India and Portugal