Question: What  is a low-cost airline headquartered at Gurgaon, that is the largest airline in India, the third largest domestic airline being the flag carrier airline of India ?

full_context: Document 1: Garuda Indonesia: Garuda Indonesia (PT Garuda Indonesia (Persero) Tbk ) is the national airline of Indonesia. Named after the holy bird Garuda of Hinduism from the national emblem of Indonesia, the airline is headquartered at Soekarno–Hatta International Airport in Tangerang, near Jakarta. As of 11 December 2014, the airline is rated as a 5-star airline by the international airline review firm Skytrax. The air carrier was previously known as Garuda Indonesian Airways.
Document 2: Lion Air: PT Lion Mentari Airlines, operating as Lion Air, is an Indonesian low-cost airline. Based in Jakarta, Indonesia, Lion Air is the country's largest privately run airline, the second largest low-cost airline in Southeast Asia after AirAsia and the second largest airline of Indonesia, flying to more than 79 destinations in Indonesia, Singapore, Malaysia and Saudi Arabia, as well as charter routes to China, Hong Kong and Macau.
Document 3: Air India One: Air India One (also referred to as AI-1 or AIC001) is the call sign of any aircraft with the Prime Minister or President of India on board. Air India is the national airline of India. The aircraft is operated as VIP flight by the Indian Air Force (IAF). The IAF's Air Headquarters Communication Squadron, based at Indira Gandhi International Airport (formerly Palam Air Force Base) in New Delhi, is in charge of operating these aircraft.
Document 4: GoAir: GoAir is a low-cost carrier based in Mumbai, India. It is owned by the Indian business conglomerate Wadia Group. In July 2017 it was the fifth largest airline in India with an 7.8% passenger market share. It commenced operations in November 2005 and operates a fleet of Airbus A320 aircraft in all economy configuration. As of 2017 , the airline operates over 140 daily flights to 23 cities from its hubs at Mumbai, Delhi and Kolkata.
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: Air India Express: Air India Express is an Indian low-cost carrier headquartered in Kochi. It is operated by Air India Express Limited (AIEL), a wholly owned subsidiary of flag carrier airline Air India. It operates around 550 flights per week to 29 destinations including the Middle East and Southeast Asia.
Document 7: 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 8: 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 9: 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 10: 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 11: Air Costa: Air Costa was an Indian regional airline headquartered in Vijayawada and based out of Chennai Airport. It was owned by Indian business company LEPL Group. The airline commenced operations as a regional airline in October 2013 using two Embraer E-170 aircraft with the first flight taking off from Chennai on 16 October 2013. The airline got a permit for pan India operations in October 2016. The airline focused on connectivity between tier II and tier III cities in the country and invested as of 2015. Air Costa operated 32 daily flights to nine destinations from its focus cities Chennai and Vijayawada as of 2015. The airline had a maintenance center in Chennai. On 28 February 2017, it suspended operations until further notice.
Document 12: SpiceJet: SpiceJet is a low-cost airline headquartered in Gurugram, India. It is the third largest airline in the country by number of domestic passengers carried, with a market share of 14.2% as of July 2017. The airline operates 312 daily flights to 55 destinations, including 45 Indian and 10 international destinations from its hubs at Delhi, Kolkata and Hyderabad.
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: Rahul Bhatia: Rahul Bhatia is an Indian businessman and co-founder and Non-executive director of low-cost carrier IndiGo and Group Managing Director of InterGlobe Enterprises. IndiGo airlines commenced operations in 4thAugust 2006 and had its Initial Public Offering (IPO) in October 2015. After the listing of the airline on the Indian stock exchanges BSE and NSE, "Forbes" magazine declared him the twentieth richest person in India (jointly with his father Kapil Bhatia), with a net worth of $3.1 billion. India Today magazine ranked him #17th in India's 50 Most powerful people of 2017 list.
Document 15: AirAsia: AirAsia Berhad () is a Malaysian low-cost airline headquartered near Kuala Lumpur, Malaysia. It is the largest airline in Malaysia by fleet size and destinations. AirAsia Group operates scheduled domestic and international flights to more than 165 destinations spanning 25 countries. Its main hub is klia2, the low-cost carrier terminal at Kuala Lumpur International Airport (KLIA) in Sepang, Selangor, Malaysia. Its affiliate airlines Thai AirAsia, Indonesia AirAsia, Philippines AirAsia, and AirAsia India have hubs in Don Mueang International Airport, Soekarno–Hatta International Airport, Ninoy Aquino International Airport, and Kempegowda International Airport respectively, while its sister airline, AirAsia X, focuses on long-haul routes. AirAsia's registered office is in Petaling Jaya, Selangor while its head office is at Kuala Lumpur International Airport.
ground_truth: IndiGo