Question: Who was the first commander in chief of the army that Charles Levinge Gregory served in after independence?

full_context: Document 1: Reginald Byng Stephens: General Sir Reginald Byng Stephens, (10 October 1869 – 6 April 1955) was a British Army general of the First World War and later Commandant of the Royal Military College, Sandhurst, from 1919 to 1923, Major-General commanding the 4th Division, 1923 to 1926, and finally Director-General of the Territorial Army, 1927 to 1931.
Document 2: Chief of the Army Staff (India): No. Name Rank Photo Appointment Date Left Office Unit of Commission Decorations Rob Lockhart General 15 August 1947 31 December 1947 51st Sikhs KCB, CIE, MC Roy Bucher General 1 January 1948 15 January 1949 Cameronians (Scottish Rifles) KBE, CB, MC Kodandera M. Cariappa General 16 January 1949 14 January 1953 Rajput Regiment OBE Rajendrasinhji Jadeja General 14 January 1953 1 April 1955 2nd Lancers (Gardner's Horse) DSO
Document 3: Governor-General of India: Viceroy and Governor - General of India Standard of the Governor - General Louis Mountbatten, the last Viceroy of India & the first Governor - General during the dominion period Style His Excellency Residence Viceroy's House Appointer East India Company (to 1858) Monarch of India (from 1858) Formation 20 October 1774 First holder Warren Hastings Final holder Chakravarthi Rajagopalachari Abolished 26 January 1950
Document 4: Allan Quartermaine: Allan Stephen Quartermaine was born in London on 9 November 1888 and, after attending Highgate School, was awarded a Bachelor of Science degree in engineering at University College London, where he was a Chadwick Scholar and later a Fellow. He served as a commissioned officer in the Royal Engineers during the First World War and was awarded the Military Cross for gallantry as a Temporary Captain. Quartermaine was promoted to Acting Major on 24 May 1919, a rank he relinquished on 15 June 1919. Between the wars he worked for Hertfordshire County Council Surveyor’s Department, Teesside Bridge and Engineering and for Great Western Railway, where he became Assistant Chief Engineer, but he remained liable for recall to the British Army as he was a Captain of the Royal Engineers (Transportation) in the Supplementary Reserve of Officers, being promoted to Major in that unit on 19 November 1924. Quartermaine resigned from the Supplementary Reserve on 1 January 1926, transferring immediately to the Regular Army Reserve of Officers whilst retaining his rank and association with the Royal Engineers. He reached the age limit (50) for recall to the British Army on 9 November 1938 and as of that date ceased to be a member of the British Army reserves. He was Director-General, Aircraft Production Factories in 1940 and Chief Engineer, Great Western Railway and Western Region of British Railways from 1940–51.
Document 5: Governor-General of India: Governor - General of India Standard of the Governor - General Louis Mountbatten, the last Viceroy of India & the first governor - general during the dominion period Style His Excellency Residence Viceroy's House Appointer East India Company (to 1858) Monarch of India (from 1858) Formation 20 October 1774 First holder Warren Hastings Final holder Chakravarthi Rajagopalachari Abolished 26 January 1950
Document 6: Charles Levinge Gregory: After graduating from the Royal Military College, Sandhurst, Gregory was initially commissioned in the Royal Irish Fusiliers but soon after transferred to the Indian Army's 19th Lancers (Fane's Horse).
Document 7: Lord George Wellesley: Wellesley was educated at Wellington College, Berkshire. He was Managing Director of Coxeter and Son plc. He was commissioned a second lieutenant (on probation) in the Grenadier Guards on 3 February 1909 and was confirmed in his rank on 1 February 1911. He was promoted to lieutenant on 15 September 1912, and was appointed a flying officer in the Royal Flying Corps (RFC) on 30 June 1914. He was promoted to flight commander on 11 December 1914, with the temporary rank of captain, and was appointed an instructor at the Central Flying School of the RFC on 19 December. He fought in the First World War between 1914 and 1918, where he was mentioned in despatches in June 1916. He was appointed a squadron commander on 1 July 1916, with the permanent rank of captain and the temporary rank of major. He was decorated with the Military Cross in 1916.
Document 8: Governor-General of India: Upon independence in August 1947, the title of Viceroy was abolished. The representative of the British Sovereign became known once again as the Governor-General. C. Rajagopalachari became the only Indian Governor-General. However, once India acquired independence, the Governor-General's role became almost entirely ceremonial, with power being exercised on a day-to-day basis by the Indian cabinet. After the nation became a republic in 1950, the President of India continued to perform the same functions.
Document 9: Chief of Army Staff (Pakistan): In 1969, the title of the army command was changed from ``Commander - in - Chief ''to`` Chief of Staff'' with President Yahya Khan acting as Commander - in - Chief and General A.H. Khan as Chief of Staff. On 20 March 1972, the post was renamed as ``Chief of Army Staff ''(COAS) with Lieutenant - General Tikka Khan elevated to four star rank to be appointed as army's first chief of army staff.
Document 10: Scott Grant: Educated at The King's School, Pontefract, the Royal Military Academy Sandhurst and Clare College, Cambridge, Scott Grant was commissioned into the Corps of Royal Engineers in 1965. He became Director-General Training & Doctrine for the Army in 1991, Team Leader for the Command Structure Review in 1993 and General Officer Commanding UK Support Command (Germany) in 1994. In 1996 he became Commandant of the Royal College of Defence Studies and in 1998 he was appointed Quartermaster-General to the Forces. He was appointed a Knight Commander of the Order of the Bath in the 1999 New Year Honours and then retired in 2000.
Document 11: Chief of the Air Staff (India): Chief of the Air Staff is the professional head and the commander of the Indian Air Force. The position is abbreviated as CAS in the Indian Air Force cables and communication, and is usually held by a four - star air officer of the rank Air Chief Marshal. The current CAS is Air Chief Marshal Birender Singh Dhanoa who took office on 31 December 2016, following the retirement of Air Chief Marshal Arup Raha.
Document 12: Roger Moorey: Roger Moorey was educated at Mill Hill School, and read Modern History at Corpus Christi College, Oxford, Oxford. Between school and university he did his National Service, learning Russian in Intelligence, and serving in Cyprus. His time in Cyprus (with its fine archaeological heritage) probably reinforced a childhood interest in ancient history and may well have prompted his interest in the post of Assistant Keeper of Antiquities which became available at the time of his graduation in 1961.
Document 13: Rudolph Trower Hogg: Born on 19 January 1877, Rudolph Trower Hogg was educated at Bedford School and at the Royal Military Academy, Woolwich. He received his first commission as a Second Lieutenant in the Royal Artillery in 1896. He transferred to the Central India Horse in 1901 and was promoted to the rank of Captain in 1905. He was appointed Assistant Military Secretary to King George V in 1911 and served during the Delhi Durbar between 1911 and 1912. He served during the First World War, during the Gallipoli Campaign and in France, and was appointed Brigade Commander of the newly-formed Royal Air Force in 1918.
Document 14: Indo-Pakistani War of 1971: The Indian Army Chief in 1971 Field Marshal Sam Manekshaw had the highest respect for the fighting capability of the Pakistan Army but he did not accept the theory that they did not fight the Bangladesh war with enough vigor and zeal. In a BBC interview, he said:
Document 15: Chief of Army Staff (Pakistan): The Chief of Army Staff (Urdu: سربراہ پاک فوج ‎ ‎) (reporting name: COAS), is a military appointment and statutory office held by the four - star rank army general in the Pakistan Army, who is appointed by the Prime Minister of Pakistan and final confirmation by the President of Pakistan.
ground_truth: Rob Lockhart
sub_queries: Charles Levinge Gregory >> military branch Answer: Indian Army
first commander in chief of Indian Army after independence Answer: Rob Lockhart