Question: Indian Airlines Flight 605 was flying from an airport formerly known by what name?

full_context: Document 1: Chennai International Airport: Chennai International Airport (IATA: MAA, ICAO: VOMM) is an international airport serving the city of Chennai (Madras), Tamil Nadu, India and its metropolitan area. It is the fourth busiest airport in India in terms of total passenger traffic after airports at Delhi, Mumbai and Bengaluru. It is the 49th busiest airport in Asia for CY 2016. In the fiscal year 2016-17, the airport handled over 18.3 million passengers. Over 400 aircraft movements are handled by the airport per day. Third busiest Airport in terms of cargo handling in India. The planned extension of the terminals are about to start as the union government has told that Chennai might not get its new airport soon.
Document 2: Chhatrapati Shivaji International Airport: Chhatrapati Shivaji International Airport (IATA: BOM, ICAO: VABB) , formerly known as Sahar International Airport, is the primary international airport serving the Mumbai Metropolitan Area, India.
Document 3: Air India Flight 182: Air India Flight 182 was an Air India flight operating on the Toronto–Montreal–London–Delhi route. On 23 June 1985, the Boeing 747-237B serving the flight (c/n 21473/330, registration VT-EFO , "Emperor Kanishka") was destroyed by a bomb at an altitude of 31000 ft . It crashed into the Atlantic Ocean while in Irish airspace. It was the first bombing of a 747 jumbo jet. A total of 329 people were killed, including 268 Canadian citizens, 27 British citizens and 24 Indian citizens. The incident was the largest mass murder in Canadian history, and the deadliest incident in the history of Air India. It was the deadliest terrorist attack involving an airplane until the September 11, 2001, attacks. The bombing of Air India 182 occurred at the same time as the Narita Airport bombing. Investigators believe that the two plots were linked, and that those responsible were aiming for a double bombing. However, the bomb at Narita exploded before it could be loaded onto the plane.
Document 4: Addis Ababa Bole International Airport: Addis Ababa Bole International Airport (IATA: ADD, ICAO: HAAB) based the city of Addis Ababa, Ethiopia. It is located in the Bole area, 6 km southeast of the city centre and 65 km north of Debre Zeyit. The airport was formerly known as "Haile Selassie I International Airport". It is the main hub of Ethiopian Airlines, the national airline that serves destinations in Ethiopia and throughout the African continent, as well as nonstop service to Asia, Europe, North America and South America. The airport is also the base of the Ethiopian Aviation Academy. As of 31 July 2013, more than 150 flights per day were departing from and arriving at the airport.
Document 5: Kempegowda International Airport: Kempegowda International Airport (IATA: BLR, ICAO: VOBL) is an international airport serving Bangalore, the capital of the Indian state of Karnataka. Spread over 4000 acre , it is located about 40 km north of the city near the village of Devanahalli. It is owned and operated by Bangalore International Airport Limited (BIAL), a public–private consortium. The airport opened in May 2008 as an alternative to increased congestion at HAL Airport, the original primary commercial airport serving the city. It is named after Kempe Gowda I, the founder of Bangalore. Kempegowda International Airport became the Karnataka's first fully solar powered airport developed by CleanMax Solar.
Document 6: Shirdi Airport: Shirdi Airport (IATA: SAG, ICAO: VASD) is located at Kakadi village, about 14 km South-west of the town of Shirdi in Maharashtra, India. The airport, spread over 400 hectares, is owned by the Maharashtra Airport Development Company (MADC) and was inaugurated by President Ram Nath Kovind on 1 October 2017. Communication Navigation Surveillance (CNS) and Air Traffic Control (ATC) at the airport will be managed by the Airports Authority of India (AAI).
Document 7: Suvarnabhumi Airport: Suvarnabhumi Airport (rtgs: Suwannaphum ;  ] ) (IATA: BKK, ICAO: VTBS) , also known as (New) Bangkok International Airport, is one of two international airports serving Bangkok, Thailand. The other one is Don Mueang International Airport. Suvarnabhumi covers an area of 3,240 hectare , making it one of the biggest international airports in Southeast Asia and a regional hub for aviation.
Document 8: 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 9: Air India Building: The Air India Building is a 23-storey commercial tower on Marine Drive in Nariman Point, Mumbai, India. The building served as the corporate headquarters for the Indian national airline, Air India, up to 2013. There are at least 10800 sqft of space on each floor of the building. In February 2013, Air India officially vacated the building as part of its asset-monetisation plan, and shifted its corporate office to New Delhi. The Indian Airlines House was chosen as the airline's new headquarters. However, the airline still retains the 21st, 22nd and 23rd floors in the building.
Document 10: Indian Airlines Flight 605: Indian Airlines Flight 605 was a scheduled domestic passenger flight, flying from Chhatrapati Shivaji International Airport in India's largest city of Bombay (present day Mumbai) to Hindustan Airport in Bangalore, the capital of Indian state of Karnataka. On 14 February 1990, the aircraft involved in the crash, an Airbus A320-231 registered in India as VT-EPN, crashed onto a golf course while on a landing attempt on Bangalore International Airport, killing 92 people.
Document 11: IndiGo: IndiGo is a low-cost airline headquartered at Gurgaon, Haryana, India. It is the largest airline in India by passengers carried and fleet size, with a 38.7% market share as of July 2017. It is also the largest individual Asian low-cost carrier in terms of jet fleet size and passengers carried, and the eighth largest carrier in Asia with over 41 million passengers carried in 2016. The airline operates to 46 destinations both domestic and international. It has its primary hub at Indira Gandhi International Airport, Delhi.
Document 12: Culture of Bangalore: Bangalore/Bengaluru is the capital and largest city in the Indian state of Karnataka. With a population of over 15 million (as of January 2016), Bengaluru is the third largest city in India and 27th largest city in the world. Bengaluru is one of the most ethnically diverse cities in the country, with over 62% of the city's population comprising migrants from other parts of India. Historically a multicultural city, Bengaluru has experienced a dramatic social and cultural change with the advent of the liberalization and expansion of the information technology and business process outsourcing industries in India. IT companies in Bengaluru employ over 35% of India's pool of 1 million IT professionals.
Document 13: Dubai International Airport: Dubai International Airport (IATA: DXB, ICAO: OMDB) (Arabic: مطار دبي الدولي‎ ‎ ) is the primary international airport serving Dubai, United Arab Emirates and is the world's busiest airport by international passenger traffic. It is also the 3rd busiest airport in the world by passenger traffic, the 6th busiest cargo airport in world, the busiest airport for Airbus A380 and Boeing 777 movements, and the busiest airport in the world operating with only two runways. In 2016, DXB handled 83.6 million passengers, 2.59 million tonnes of cargo and registered 418,220 aircraft movements.
Document 14: Soekarno–Hatta International Airport: Soekarno–Hatta International Airport (Indonesian: "Bandar Udara Internasional Soekarno–Hatta" ) (IATA: CGK, ICAO: WIII) , abbreviated SHIA or Soetta, is the primary airport serving the Greater Jakarta area on the island of Java in Indonesia. Named after the first president and vice-president of Indonesia, Soekarno and Mohammad Hatta, the airport is located at Benda, Tangerang, approximately 20 km northwest of central Jakarta. Due to its proximity to the neighbourhood of Cengkareng in West Jakarta, the airport is also known as Cengkareng Airport, with the assigned three-letter IATA designator "CGK". The airport is the busiest and the largest airport in Indonesia, as well as being the busiest in the southern hemisphere. According to air travel intelligence company OAG, the airport ranked as the 7th most connected airport in the world & ranked 1st as 'megahub' airport in Asia-Pacific region as per connectivity index, ahead of Japan's Tokyo Haneda Airport and Australia's Sydney Airport .
Document 15: 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.
ground_truth: Sahar International Airport