The correct answer is Bombay Stock Exchange (BSE). Sensex, also known as the S&P BSE Sensex index, is the benchmark index of India's BSE, formerly known as the Bombay Stock Exchange. Stock Exchange: Stock Exchange is a marketplace where financial securities such as shares, bonds, commodities, etc issued by the companies are bought and sold. The first stock exchange Amsterdam Stock exchange was established in 1602 by the Dutch East India Company. (Verenigde Oostindische Compagnie or VOC). Important PointsIndian Commodity Exchange Ltd (ICEX) was established in 2008, headquartered in Mumbai. The ICEX index is named 'ICEX Main'. Bombay Stock Exchange was established in 1875, headquartered in Mumbai. The BSE index is named as 'Sensex- Sensitivity Index'. Calcutta Stock Exchange was established in 1908, headquartered in Kolkata. The CSE index is named as 'CSE40'The National Stock exchange was established in 1992, headquartered in Mumbai. The NSE index is named 'NIFTY50'.