Title: Chennai
Content:  "Madras" redirects here. For other uses, see Madras (disambiguation) and Chennai (disambiguation) Chennai, also known as Madras (the official name until 1996), is the capital city of the Indian state of Tamil Nadu. Located on the Coromandel Coast of the Bay of Bengal, it is the largest cultural, economic and educational centre of South India. According to the 2011 Indian census, Chennai is the sixth-most populous city, and forms the fourth-most populous urban agglomeration in India. The city is coterminous with Chennai district, which together with the adjoining suburbs constitutes the Chennai Metropolitan Area, the 36th-largest urban area in the world by population. 
Title: History of Chennai
Content:  Chennai, formerly known as Madras, is the capital of the state of Tamil Nadu and is India's fifth largest city. It is located on the Coromandel Coast of the Bay of Bengal. With an estimated population of 8.9 million (2014), the 0-year-old city is the 31st largest metropolitan area in the world. Chennai boasts of a long history from the English East India Company, through the British rule to its evolution in the late 20th century as a services and manufacturing hub for India. Additionally, the pre-city area of Chennai has a long history within the records of South Indian Empires.
Title: Slums in Chennai
Content:  Chennai is the capital city of the South Indian state of Tamil Nadu and is the fourth largest metropolitan city in the country. A total of 29% of Chennai population resided in slums as of 2011. The state government of Tamil Nadu has established a Slum clearance Board, with a minister heading it.
Title: Chennai
Content:  the city. The city's contiguous satellite towns include Mahabalipuram in the south, Chengalpattu and Maraimalai Nagar in the southwest, and Sriperumpudur, Arakkonam, Kanchipuram and Tiruvallur to the west. Chennai, as the capital of the state of Tamil Nadu, houses the state executive and legislative headquarters primarily in the Secretariat Buildings in the Fort St George campus. The Madras High Court, is the highest judicial authority in the state, whose jurisdiction extends across Tamil Nadu and Puducherry. Chennai has three parliamentary constituencies—Chennai North, Chennai Central and Chennai South—and elects 24 Members of the Legislative Assembly (MLAs) to the state legislature.
Title: Tourism in Tamil Nadu
Content:  Chennai formerly known as Madras, is the capital city of the state, and India's fourth largest metropolis. The city is known for its beaches, ancient Tamil architecture, Anglo-Indian architecture, cultural festivals and is India's largest shopping destination. Chennai is seen as the gateway to Southern India and is well connected to all parts of India by road, rail and air. The city is currently India's 4th largest and one of the world's fifty most largest ones. This city houses Asia's largest hospitals which has recently spurred a new wave of medical tourism.
Title: Tamil Nadu
Content:  The state capital of Chennai is the most populous city in the state with more than 8,900,000 residents, followed by Coimbatore, Madurai, Trichy and Salem, respectively. Chennai is also the sixth-most populous city in India according to the 2011 Indian census.
Title: History of Chennai
Content:  Chennai, formerly known as Madras is a large cultural, commercial and industrial centre, and is known for its cultural heritage and temple architecture. Chennai is the automobile capital of India, with around forty percent of the automobile industry having a base there and with a major portion of the nation's vehicles being produced there. It is a major manufacturing centre. Chennai has also become a major centre for outsourced IT and financial services from the Western world. Owing to the city's rich musical and cultural traditions, the United Nations Educational, Scientific, and Cultural Organisation (UNESCO) has included Chennai in its Creative Cities Network.
Title: Chennai Protest of Innocence of Muslims
Content:  Chennai is the capital city of the Indian state of Tamil Nadu and is the largest industrial and commercial centre in South India and is a cultural, economic and educational hub. As the sixth most populous city in India, has a greater population of approximately 8.9 million people, making it the 31st largest urban area in the world. Tamil is the primary language spoken in Chennai and English is sometimes mixed with Tamil by the white-collar workers. Hindus make up about 81.3% of the city’s population with 9.4% Muslims, 7.6% Christians, and 1.1% Jains as the other major religious groups.
Title: Economy of Chennai
Content:  Chennai, the capital city of the state of Tamil Nadu, India, is the largest industrial and commercial center of South India. Recent estimates of the economy of the Chennai Metropolitan Area is around US$78.6-86 billion (over $200 billion with industrial zones; PPP GDP), ranking it from fourth-fifth most productive metro area of India,  and the third highest by GDP per capita. The metropolitan area doesn't include the nearby industrial zones of Siruseri and Sriperumbudur, due to which these regions' economy doesn't get included in the total economy of Chennai. If these regions are included, the economy of chennai would be somewhere over $200 billion. Chennai has an economic base anchored by 
Title: Economy of Chennai
Content:  Chennai, hosts the Madras Music Season, during the months of December and January, annually. It is the capital of the Carnatic Music and Bharatanatyam scene in India, and there are many venues in which artists perform throughout the city. There is also a large theatre scene and contemporary visual art scene in the city.

Question: What is Chennai the capital of?
Answer: Tamil Nadu.