survey, 77% of males and 19% of females in the city were employed. The service industry remains dominant in the city, and 90% of the employed workforce is engaged in this sector. Hyderabad's role in the pearl trade has given it the name "City of Pearls" and up until the 18th century, the city was the only global trading centre for diamonds known as Golconda Diamonds. Industrialisation began under the Nizams in the late 19th century, helped by railway expansion that connected the city with major ports. From the 1950s to the 1970s, Indian enterprises, such as Bharat Heavy Electricals Limited (BHEL), Nuclear Fuel Complex (NFC), National Mineral Development Corporation (NMDC), Bharat Electronics (BEL), Electronics Corporation of India Limited (ECIL), Defence Research and Development Organisation (DRDO), Hindustan Aeronautics Limited (HAL), Centre for Cellular and Molecular Biology (CCMB), Centre for DNA Fingerprinting and Diagnostics (CDFD), State Bank of Hyderabad (SBH) and Andhra Bank (AB) were established in the city. The city is home to Hyderabad Securities formerly known as Hyderabad Stock Exchange (HSE), and houses the regional office of the Securities and Exchange Board of India (SEBI). In 2013, the Bombay Stock Exchange (BSE) facility in Hyderabad was forecast to provide operations and transactions services to BSE-Mumbai by the end of 2014. The growth of the financial services sector has helped Hyderabad evolve from a traditional manufacturing city to a cosmopolitan industrial service centre. Since the 1990s, the growth of information technology (IT), IT-enabled services (ITES), insurance and financial institutions has expanded the service sector, and these primary economic activities have boosted the ancillary sectors of trade and commerce, transport, storage, communication, real estate and retail. , the IT exports from Hyderabad were 1,45,522 crore (19.66 billion), the city houses 1500 IT and ITES companies that provide 628,615 jobs. Hyderabad's commercial markets are divided into four sectors: central business districts, sub-central business centres, neighbourhood business centres and local business centres. Many traditional and historic bazaars are located throughout the city, Laad Bazaar being the prominent among all is popular for selling a variety of traditional and cultural antique wares, along with gems and pearls. The establishment of Indian Drugs and Pharmaceuticals Limited (IDPL), a public sector undertaking, in 1961 was followed over the decades by many national and global companies opening manufacturing and research facilities in the city. , the city manufactured one third of India's bulk drugs and 16% of