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. As of 2010[update], the city manufactured one third of India's bulk drugs and 16% of biotechnology products, contributing to its reputation as "India's pharmaceutical capital" and the "Genome Valley of India". Hyderabad is a global centre of information technology, for which it is known as Cyberabad (Cyber City). As of 2013[update], it contributed 15% of India's and 98% of Andhra Pradesh's exports in IT and ITES sectors and 22% of NASSCOM's total membership is from the city. The development of HITEC City, a township with extensive technological infrastructure, prompted multinational companies to establish facilities in Hyderabad. The city is home to more than 1300 IT and ITES firms, including global conglomerates such as Microsoft (operating its largest R&D campus outside the US), Google, IBM, Yahoo!, Dell, Facebook,:3 and major Indian firms including Tech Mahindra, Infosys, Tata Consultancy Services (TCS), Polaris and Wipro.:3 In 2009 the World Bank Group ranked the city as the second best Indian city for doing business. The city and its suburbs contain the highest number of special economic zones of any Indian city.