Question: Rakesh Gangwal is the co founder of an airline headquartered in which country ?

Context paragraphs:
Nissar Ahmed: Nissar Ahmed is an Indian Educationist, Entrepreneur, Philanthropist, CO Founder Chairman of Presidency Group of Institutions (The PGI Group) and Founder Chancellor of Presidency University, Bangalore.

Sonia Bashir Kabir: Sonia Bashir Kabir is a Bangladeshi business executive.  She is currently the Managing Director for Microsoft Bangladesh, Board Director and Co Founder of D Money (a Fin-Tech start up), Vice President and Co-Founder of Bangladesh Women in Technology (BWIT).  Besides co-founding an IT firm called Syntec in Bangladesh, Sonia has served as the Country Director of Dell Bangladesh, Director Business Development for South East Asia, New Emerging Markets in Microsoft and Chief Operating Officer for Aamra Technologies Ltd.   She currently serves as a Board Member of Bangladesh Association of Software and Information Services (BASIS).  She also serves in the Advisory Boards of the School of Business and the School of Computer Science of North South University and in the School of Business Advisory Board of Independent University Bangladesh.   Sonia was a Bangladeshi national athlete; she has played for Abahani women's Volleyball and Cricket team and continued playing for Bangladesh National Volleyball team and Bangladesh National Cricket team.  Former UN Secretary-General Ban Ki-moon appointed Sonia in 2015 to the Governing Council of the Technology Bank for the Least Developed Countries (LDC) for a 3 year term.

Rakesh Gangwal: Rakesh Gangwal is a former CEO and Chairman of US Airways Group.  From June 2003 to August 2007, Gangwal was the chairman, president, and chief executive officer of Worldspan Technologies, Inc., a provider of travel technology and information services to the travel and transportation industry.  From 2002 to 2003, Gangwal was involved in various personal business endeavors, including private equity projects and consulting projects.  He was the president and chief executive officer of US Airways Group from 1998 until his resignation in 2001.  He is co-founder of Indigo airline.

Odilon Kafitwe wa pa Bowa: Odilon Kafitwe wa Pa Bowa (14 December 1939 – 12 June 1993) was a politician in the Democratic Republic of the Congo (DRC).  Kafitwe held various positions as Director at Gecamines, member of the board of directors at SNCC, CEO of Gecamine Development, Co founder of UFERI one of the biggest political party in the early 90's and Minister of Justice.  He initiated the renovation and put in place an Artisan Development Academy in some of the prisons around the country.  When he was head of CEPSE Kafitwe made a record that was never reached in the productions of Maize for the Katanga province and initiated a food security program for the Province with the boosting and Development of farms in Katanga (Mangombo, Kando et Kasonga).  He is one of the rare leader in the DRC who had a chance to be honored by being buried on top of a mountain in a town call Likasi "Montagne du Mangeur de Cuivre" because of advocating to the world to recognize the Copper-eaters.  The first African people who worked the red metal well before the arrival of the Belgians in the DRC les " Mangeurs de Cuivre".

Sonja Bernhardt: Sonja Bernhardt OAM is an Australian information technology industry identity extensively involved in mentoring and role model programs for women in IT.  She was founder and Inaugural President of WiT (Women in Technology) in Queensland in 1997 and co founder and Inaugural President of AWISE (Australian Women in IT, Science and Engineering) in 2005, not for profit industry groups that run community based projects and programs specifically to encourage women and girls into technology careers.  In addition, Bernhardt is responsible for a number of initiatives to raise the profile of women in technology and break perceptions of technology careers as "nerdy" or "male", such as the 2007 Screen Goddess IT Calendar, IT's Million $ Babes Awards and Doing IT Around the World.

DC Mountain Lab: The DC Mountain Lab was a private snowboard park in Park City, Utah, known as a research and development center.  As of 2011, the property is being put up for sale.  The property is taken up mostly by the snowboard park, but there is also a house there.  It was owned and operated by DC president and co founder Ken Block.  The 22 acre are home to kickers, boxes, butters and rails galore.  The Lab has its own snowcat for building jumps and grooming the park.  It also has 8 snowmobiles and a handful of dirt bikes.  The Mountain Lab was the location of the snowboard video MTN.  Lab and MTN.  Lab 1.5.  It also serves as a second home for DC co-owner and founder Ken Block and his family.

Shady Nate: Shady Nate, is an American rapper from Oakland.  He is co founder and original member of Livewire Records with rapper J Stalin.  He is also founder and CEO of Shady Nation.

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.

Alejandra Chellew: Alejandra Chellew is a Chilean artistic businesswoman.  One of the most important female leaders in the country, being selected among the 50 most important leaders in the country in 2005.  She is a co founder of La Sala gallery, investing a lot of effort and resources supporting Chilean young talents.

Lamia Joreige: Lamia Joreige (born in Beirut, Lebanon) is a Lebanese visual artist and filmmaker.  She received a BFA (Painting, Filmmaking) from Rhode Island School of Design, Providence, Rhode Island.  Since the late 1990s, her works have been widely displayed.  She is a co founder and co director (with Sandra Dagher) of the Beirut Art Center.

Supporting paragraphs: Rakesh Gangwal IndiGo
Answer: India