Bengaluru, also known as Bangalore, is the capital and largest city of the southern Indian state of Karnataka. As per the 2011 census, the city had a population of 8.4 million, making it the third most populous city in India and the most populous in South India. The Bengaluru metropolitan area had a population of around 8.5 million, making it the fifth most populous urban agglomeration in the country. It is located towards the southern end of the Deccan Plateau, at an altitude of 900 m (3,000 ft) above sea level. The city is known as India's "Garden City", due to its parks and greenery.