Chennai (also known as Madras) is the capital city of the Indian state of Tamil Nadu. Located on the Coromandel Coast off the Bay of Bengal, it is the biggest industrial and commercial centre in South India, and a major cultural, economic and educational centre. Chennai is known as the "Detroit of India" for its automobile industry. It is the sixth-largest city and fourth-most populous metropolitan area in the country and 31st-largest urban area in the world. The city is the secondary financial hub in the country, after Mumbai.
The city is host to the third-largest expatriate population in India after Mumbai and Delhi, with 35,000 in 2009 and steadily climbing to 82,790, in 2011. Chennai is the only city in South Asia and India to figure in the "52 places to go around the world" by The New York Times. Tourism guide publisher Lonely Planet has named Chennai as one of the top ten cities in the world to visit in 2015. Chennai is ranked as a beta-level city in the Global Cities Index and was ranked the best city in India by India Today in the 2014 annual Indian city survey. Chennai has also been named in the 'hottest' cities to live in for 2015 by BBC among global cities with a mixture of both modern and traditional values. National Geographic ranked Chennai as world's 2nd best food city and Chennai was the only Indian city to feature in the list. Chennai was also named the the 9th best cosmopolitan city in the world by Lonely Planet. The Chennai Metropolitan Area has recently (January 2015) been ranked the fourth-largest economy in India, and the third highest GDP per capita.
Chennai is the leading city of India and the foremost centre of financial, technological, scientific and health care activities. Medical tourism is an important part of Chennai's economy with 45 percent of total medical tourists to India making to Chennai. It is the fastest developing city of the nation with the exploration in all the major sectors.
Chennai, sometimes referred to as the "Gateway to South India, is located on the south–eastern coast of India in the north–eastern part of Tamil Nadu on a flat coastal plain known as the Eastern Coastal Plains.
According to the Confederation of Indian Industry, Chennai is estimated to grow to a US$100–billion economy, 2.5 times its present size, by the year 2025. As of 2015, with 2.5 lakh crore investment in the pipeline over 5 years, the city is poised for major industrial investment. Chennai is classified as a global city by GaWC, with a ranking of Beta based on the extent of global reach and financial influence.
IIOOExpo is organized where Eyecare begins in India:
- Egmore Eye Hospital - “Since 1819” (Institute of Ophthalmology and Government Ophthalmic Hospital) Chennai - oldest eye hospital in Asia it is next to Moorfield Eye Hospital in the United Kingdom.
- Elite School of Optometry (ESO)- Chennaisince 1985 was the trend setter in Optometry to offer a four-year degree course in India.
- There is 3000 Optical Store in Chennai where whole south India has around 10000+.
- There are around 4,000 ophthalmologists in Chennai out of 16000 in India
- Sankara Nethralaya, Chennai (Form 1978) - 1000 employees and serves 1200 patients per day, performing 100 surgeries per day. The annual revenue as per the taxes is close to US$100 million.
- Chennai attracts about 45 percent of health tourists from abroad arriving in the country and 30 to 40 percent of domestic health tourists
- Multi- and Super-Specialty hospitals across the Chennai bring in an estimated 150 international patients every day