Bangalore (or ಬೆಂಗಳೂರು Bengaluru, [ˈbeŋɡəɭuːɾu] is the capital city of the Indian state of Karnataka. Located on the Deccan Plateau in the south-eastern part of Karnataka. Bangalore is India's third most populous city and fifth-most populous urban agglomeration. Bangalore is known as the Silicon Valley of India because of its position as the nation's leading Information technology exporter. Located at a height of over 3,000 feet above sea level, Bangalore is known for its pleasant climate throughout the year.in but recent year it is changing , The city is amongst the top ten preferred entrepreneurial locations in the world.
A succession of South Indian dynasties, the Western Gangas, the Cholas, and the Hoysalas ruled the present region of Bangalore until in 1537 CE, Kempé Gowdā — a feudatory ruler under the Vijayanagara Empire — established a mud fort considered to be the foundation of modern Bangalore. Following transitory occupation by the Marāthās and Mughals, the city remained under the Mysore Kingdom. It later passed into the hands of Hyder Ali and his son Tipu Sultan, and was captured by the British after victory in the Fourth Anglo-Mysore War (1799), who returned administrative control of the city to the Maharaja of Mysore. The old city developed in the dominions of the Maharaja of Mysore, and was made capital of the Princely State of Mysore, which existed as a nominally sovereign entity of the British Raj. In 1809, the British shifted their cantonment to Bangalore, outside the old city, and a town grew up around it, which was governed as part of British India. Following India's independence in 1947, Bangalore became the capital of Mysore State, and remained capital when the new Indian state of Karnataka was formed in 1956. The two urban settlements of Bangalore — City and Cantonment — which had developed as independent entities merged into a single urban centre in 1949. The city was renamed Bengaluru in 2006.
Bangalore is home to many well-recognised educational and research institutions in India, such as the Indian Institute of Science , Indian Institute of Management (Bangalore) ,National Institute of Fashion Technology and National Institute of Mental Health and Neurosciences . Numerous public sector heavy industries, technology companies, aerospace, telecommunications, and defiance organizations, such as Bharat Electronics Limited , Hindustan Aeronautics Limited (HAL), National Aerospace Laboratories , Bharat Heavy Electricals Limited , Indian Space Research Organization , Infosys, and Wipro are headquartered in the city. A demographically diverse city, Bangalore is a major economic and cultural hub and the second-fastest growing major metropolis in India. The city also houses the Kannada film industry. As a growing metropolitan city in a developing country, Bangalore confronts substantial pollution and other logistical and socio-economic problems. With a Gross domestic product (GDP) of US$83 billion, Bangalore is listed fourth among the top 15 cities contributing to India's overall GDP.