permanent exhibition complex in Nandambakkam called the Chennai Trade Centre. It hosted the Tamil Nadu Global Investors Meet in 2019 which was a business summit organised by the Government of Tamil Nadu. With 385 ultra-rich living in the city as of 2013, Chennai is positioned in the sixth place among Indian cities that are home to the country's super-rich. The city is the third largest market in India for luxury cars. Banking and finance The Reserve Bank of India ranked Chennai as third-largest deposit centre and third-largest credit centre nationwide as of June 2012. Prior to the advent of modern commercial banks, the banking services in the city were offered to the public by Nattukottai Chettiars or Nagarathars, chiefly in and around the neighbourhood of George Town, who offered loans as well as accepted money deposits from the public, in addition to offering loans to the agricultural labourers. Even today, many of the banking offices are housed in heritage structures belonging to the colonial era that are chiefly clustered around Rajaji Road in George Town. Chennai is home to the first European-style banking system in India with the establishment of the 'Madras Bank' on 21 June 1683, almost a century before the establishment of the first commercial banks, such as the Bank of Hindustan and the General Bank of India, which were established in 1770 and 1786, respectively. Upon the recommendation of the British Finance Committee on the formation of a government bank, the Madras Bank, then known as the 'Government Bank', started functioning again from 1806. In 1843, the bank merged with the Carnatic Bank (1788), the British Bank of Madras (1795) and the Asiatic Bank (1804) and became the Bank of Madras, which was one of the three Presidency banks of India, the other two being the Bank of Bengal and the Bank of Bombay. In 1921, the three Presidency banks merged to form the Imperial Bank of India, which later became the State Bank of India in 1955. Chennai is the headquarters of the Indian Bank, the Indian Overseas Bank and the erstwhile Bharat Overseas Bank, which merged with the Indian Overseas Bank in 2007. The city is home to the south zonal office of the Reserve Bank of India, the country's central bank, along with its zonal training centre and Reserve Bank Staff College, one of the two colleges of the bank. The city also houses