Question: The 2011 Indian Grand Prix was held 40 km from what city? 

Context articles: 1966 Singapore Grand Prix
2011 FIA Formula One World Championship
1923 Grand Prix season
2013 Indian Grand Prix
2014 Australian Grand Prix
2011 Indian Grand Prix
Gurmeet Singh
Buddh International Circuit
2012 Indian Grand Prix
1979 Indian Open

The inaugural Singapore Grand Prix was held from the 9th to 11th in April 1966, on the Thomson Road Grand Prix circuit.
 Previous editions of the Grand Prix were held before Singapore gained its independence, and were not called "Singapore Grand Prix".
 The 1965 Malaysian Grand Prix was held on the same course, as part of the Malaysian Grand Prix event, as the 1966 Grand Prix of Singapore.
The 2011 FIA Formula One World Championship was the 65th season of FIA Formula One motor racing.
 The original calendar for the 2011 Formula One World Championship consisted of twenty rounds, including the inaugural running of the Indian Grand Prix before the cancellation of the Bahrain Grand Prix.
 Pirelli returned to the sport as tyre supplier for all teams, taking over from Bridgestone.
 Red Bull Racing was the reigning Constructors' Champion.
 Red Bull Racing's Sebastian Vettel was the defending Drivers' Champion, one of five World Champions appearing on the grid.
 Vettel won his second World Championship at the 2011 Japanese Grand Prix, becoming the youngest driver, at 24 years and 98 days, to do so.
 Red Bull Racing won the Constructors' Championship.
The 1923 Grand Prix season saw Grand Prix motor racing in Europe.
 For the first time, the Indianapolis 500 was also designated a Grand Épreuve by the International Sporting Commission of the AIACR.
 The French Grand Prix was held in Tours.
 The Italian Grand Prix (which was also the European Grand Prix) was held at Monza.
 Spain entered the Grand Prix circus with the Spanish Grand Prix at Sitges-Terramar and the first San Sebastián Grand Prix at Lasarte.
The 2013 Indian Grand Prix (formally the 2013 Formula 1 Airtel Indian Grand Prix) was a Formula One motor race held on 27 October 2013 at the Buddh International Circuit, Greater Noida, Uttar Pradesh, India.
 It was the sixteenth round of the 2013 Formula One season, and the third Indian Grand Prix.
 The race, contested over 60 laps, was won by Sebastian Vettel, driving a Red Bull, from a pole position start.
 Nico Rosberg finished second in a Mercedes, with Romain Grosjean third for the Lotus team.
 Vettel's win confirmed him as 2013 Drivers' Champion, as Fernando Alonso could not pass Vettel's points total with only three races remaining.
 Red Bull also clinched their fourth consecutive Constructors' Championship.
The 2014 Australian Grand Prix (formally known as the 2014 Formula 1 Rolex Australian Grand Prix) was a Formula One motor race that was held on 16 March 2014 in Melbourne.
 The race was contested over 58 laps of the Melbourne Grand Prix Circuit and was the first round of the 2014 FIA Formula One World Championship.
 It marked the début of new Formula One regulations which introduced 1.6 litre turbocharged V6 engines to the sport; the first such instance, since the 1988 Australian Grand Prix, that turbocharged engines have been used in Formula One.
 It was the seventy-ninth race in the combined history of the Australian Grand Prix—which dates back to the 100 Miles Road Race of 1928—and the nineteenth time the event was held at the Melbourne Grand Prix Circuit.
 The race also marked the thirtieth year that the Australian Grand Prix was run as a round of the Formula One World Championship.
The 2011 Indian Grand Prix, formally the 2011 Formula 1 Airtel Grand Prix of India, was a Formula One motor race that was held on 30 October 2011 at the Buddh International Circuit in Greater Noida, Uttar Pradesh, India.
 It was the seventeenth round of the 2011 Formula One season and the first Formula One Grand Prix to take place on the Indian subcontinent.
Gurmeet Singh (born 1 July 1985 in Uttarakhand, India) is an Indian athlete who competes in the 20 kilometres race walk event.
 He is a current Indian record holder in the 20 km race walk, which he set in the Indian Grand Prix I in Patiala in May 2011.
 Gurmeet is sponsored by the Mittal Champions Trust, an initiative run by steel magnate Lakshmi N. Mittal.
 He is one of the three Indian athletes who qualified for the 2012 Summer Olympics in 20 km race walk event with an 'A' qualification standard (1:22:30).
 He achieved this berth in the 18th Dublin International Grand Prix in Ireland after finishing sixth with a time of 1:22:05.
The Buddh International Circuit (बुद्ध अन्तरराष्ट्रीय परिपथ) is an Indian motor racing circuit in Greater Noida, Uttar Pradesh, India, 40 km from Delhi.
 The 120,000-capacity circuit was best known as the venue for the annual Formula One Indian Grand Prix, which was first hosted on 30 October 2011 but has been suspended since 27 October 2013 due to a tax dispute with the Uttar Pradesh government.
The 2012 Indian Grand Prix (formally known as the 2012 Formula 1 Airtel Indian Grand Prix) was a Formula One motor race held on 28 October 2012 at the Buddh International Circuit in Greater Noida, Uttar Pradesh, India.
 The race was the seventeenth round of the 2012 championship, and marked the second running of the Indian Grand Prix.
The 1979 Indian Open, also known as the Indian Grand Prix, was a men's tennis tournament played on outdoor clay courts in Bombay, India.
 It was the seventh and last edition of the tournament and was held from 19 November through 25 November 1979.
 The tournament was part of the Grand Prix tennis circuit.
 First-seeded Vijay Amritraj won the singles title, his fourth at the event after 1973, 1975 and 1977.
 Due to the cancellation of the tournament in Manila, Philippines the Indian Open was held one week earlier compared to the original schedule.