Question: Which airline merged with the company with who Prem Mathur worked for in 1953?

full_context: Document 1: Air India: Air India is the flag carrier airline of India. It is owned by Air India Limited, a government-owned enterprise, and operates a fleet of Airbus and Boeing aircraft serving 90 domestic and international destinations. The airline has its hub at Indira Gandhi International Airport, New Delhi, alongside several focus cities across India. Air India is the largest international carrier out of India with an 18.6% market share. Over 60 international destinations are served by Air India across four continents. Additionally, the carrier is the third largest domestic airline in India in terms of passengers carried (after IndiGo and Jet Airways) with a market share of 13.5% as of July 2017. The airline became the 27th member of Star Alliance on 11 July 2014.
Document 2: Indian Airlines destinations: Indian served the following destinations before being merged into Air India on 26 February 2011:
Document 3: Air India Limited: Air India Limited is a company that was formed as National Aviation Company of India Limited by the government of India to oversee the merger of Air India and Indian. The company was renamed as Air India Limited on 26 October 2010. It was incorporated under the Companies Act 1956 on 30 March 2007 and was owned by the Government of India based at the Air India Building in Nariman Point, Mumbai. The Company was created to facilitate the merger of the two main state-owned airlines in India: Air India, with its subsidiary Air India Express and Indian, together with its subsidiary Alliance Air (was called Air India Regional for about 6 years from 2011 to March 2017).
Document 4: Vistara: Tata SIA Airlines Limited, operating as Vistara, is an Indian domestic airline based in Gurgaon with its hub at Delhi-Indira Gandhi International Airport. The carrier, a joint venture between Tata Sons and Singapore Airlines, commenced operations on 9 January 2015 with its inaugural flight between Delhi and Mumbai. The airline had carried more than two million passengers by June 2016 and as of May 2017, has a 3.3% share of the domestic carrier market, making it the 6th largest domestic airline. The airline operates to nineteen destinations with a fleet of Airbus A320-200 aircraft. Vistara was the first airline to introduce premium economy seats on domestic routes in India.
Document 5: Indian Airlines: Indian Airlines, later Indian (Indian Airlines Limited from 1993 and Indian Airlines Corporation from 1953 to 1993), was a major Indian airline based in Delhi and focused primarily on domestic routes, along with several international services to neighbouring countries in Asia. It was state-owned, after merger of eight pre-Independence domestic airlines and was administered by the Ministry of Civil Aviation. Indian was formerly one of the two flag carriers of India, the other being Air India.
Document 6: Prem Mathur: Prem Mathur is the first Indian woman commercial pilot and started flying for Deccan Airways. She obtained her commercial pilot's licence in 1947. In 1949 she won the National Air Race.
Document 7: Bessie Coleman: Bessie Coleman (January 26, 1892April 30, 1926) was an American civil aviator. She was the first woman of African-American descent, and the first of Native American descent, to hold a pilot license.
Document 8: Rakshya Rana: Rakshya Rana (Nepali: रक्षा राणा ) (Born 7 November 1967) is Nepal's first female pilot. She was born on 7 November 1967 as daughter of (late) Ganga Rana and Noor Pratap JB Rana. Rakshya got her training from Hoffman Pilot Center in Broomfield, Colorado for her private pilot license. She then moved to Addison, Dallas, Texas where she completed the rest of the training and obtained her FAA commercial Pilot license with Multi-Engine and Instrument Rating in April 1988. It took her 11 months in total to complete the course. Rakshya was 24 years old when she flew professionally for the first time, with the domestic airlines Everest Air.
Document 9: Women in the Pakistan Armed Forces: Women in the Pakistan Armed Forces are the female soldiers who serve in the Pakistan Armed Forces. Women have been taking part in Pakistani military since 1947 after the establishment of Pakistan. There are currently around 4,000 women who are serving in the Pakistan Armed Forces. In 2006, the first women fighter pilots batch joined the combat aerial mission command of PAF
Document 10: Deccan Airways Limited: Deccan Airways Limited was a commercial airline based in Hyderabad. Founded in 1945, it was one of the nine airlines existing in India during independence. The airline, a joint venture of Nizam Government of erstwhile Hyderabad State and Tata Airlines was launched with a fleet of three aircraft. By the time it was merged with Indian Airlines in 1953, it had a fleet of thirteen Douglas DC-3 'Dakota' aircraft. The airline operated on Madras-Hyderabad-Nagpur- Bhopal-Gwalior-Delhi, Hyderabad-Bombay and Hyderabad-Bangalore sectors.
Document 11: Mary Riddle: Mary Riddle (also known as Kus-de-cha or Kingfisher, April 22, 1902 – October 25, 1981) was the first Native American woman to earn a pilot's license. Soon after earning her pilot's license she also earned her commercial license. Riddle trained as a pilot in Portland and was a member of the Clatsop Tribe in Oregon Quinault Indian Nation in Washington. Riddle started training with Tex Rankin in 1927. She was qualified to fly solo in 1930. Also in 1930, she planned to fly to Washington D.C. with "beaded gifts for President Hoover from Indian Tribes." In June 1934, she was featured on the 99's magazine, "The 99er". By 1937 she was performing as a parachutist. She later went to the Spartan School in Tulsa to learn parachute jumping. She did over forty parachute jumps. During World War II, she was recruited by the government to inspect civilian aircraft and work as an aircraft maintenance advisor.
Document 12: Sarla Thakral: Sarla Thakral (1914 – 15 March 2008) was the first Indian woman to fly an aircraft. Born in 1914, she earned an aviation pilot license in 1936 at the age of 21 and flew a Gypsy Moth solo. She had a four-year-old daughter. After obtaining the initial licence, she persevered and completed one thousand hours of flying in the aircraft owned by the Lahore Flying Club. Her husband P. D. Sharma whom she married at 16 and comes from a family which had 9 pilots encouraged her to achieve it. While Sharma had been the first Indian to get his airmail pilot's license, flying between Karachi and Lahore; his wife would be first woman in India to attain her 'A’ license when she accumulated over 1000 hours of flying.
Document 13: Federation of Indian Airlines: The Federation of Indian Airlines (FIA) is an airline industry body in India. Its members are Jet Airways, IndiGo, SpiceJet and GoAir. As of March 2017, the four members of the FIA have a combined 80% share of the domestic aviation market. The functions of the FIA are carried out by an Executive Council composed of the heads of each of the member airlines.
Document 14: Ayesha Farooq: Flight Lieutenant Ayesha Farooq (Urdu:عائشہ فاروق) (born August 24, 1987) is a Pakistani fighter pilot from Bahawalpur who is the first female to become fighter pilot in Pakistan Air Force. In 2013, she became first and only Pakistani and South Asian female fighter pilot after topping the final exams to qualify. She now flies missions in a Chinese-made Chengdu J-7 fighter jet alongside her 24 male colleagues in Squadron 20.
Document 15: Elizabeth Chambers (pilot): Elizabeth "Betty" Maxine Chambers (August 25, 1920 − May 11, 1961) was one of the first female pilots in the Women Airforce Service Pilots (WASP) program in which women took on non-combat flying duties so more male pilots were available for combat. She was in WASP Class of 44-W-3 as part of the
ground_truth: Indian Airlines