Bangalore is the capital of the Indian state of Karnataka, known as the Silicon Valley of India because of the large number of information technology companies located in the city. Bangalore’s IT industry is divided into three main clusters: Software Technology Parks of India, International Tech Park, Bangalore and Electronics City. Infosys, Cognizant, Wipro, iGate, Tata Consultancy Services, Accenture, Nokia Siemens Networks and US based companies like Texas Instruments, Google, IBM, Hewlett-Packard, Honeywell, Yahoo, Oracle Corporation, Cisco, Microsoft, Intuit and Intel have their research and development centers along with their corporate offices in Bangalore.