Chennai formerly known as Madras is one of the largest cultural, economic, and educational centers of south India. The Quality of Living Survey rated Chennai as the safest city in India. Chennai is among the most-visited Indian cities by foreign tourists. The Chennai Metropolitan Area is one of the largest municipal economies of India. Chennai is nicknamed "The Detroit of India".
Chennai has world-class medical facilities, including both government-run and private hospitals. Chennai attracts about 45 percent of health tourists from abroad and 30 percent to 40 percent of domestic health tourists. The city has been termed India's health capital.
With temples, beaches, and centers of historical and cultural significance, including the UNESCO Heritage Site of Mahabalipuram, Chennai is one of the most-visited cities in India. The city serves as the gateway to the southern part of India with tourists landing in the city and then visiting the rest of the region.