Thiruvananthapuram, also known as Trivandrum, is the capital city of the Indian state of Kerala. As of 2011, the Thiruvananthapuram Municipal Corporation had a population of 957,730 over an area of 214.86 km2, making it the most populous city in Kerala. The larger Thiruvananthapuram metropolitan area has over 1.7 million inhabitants within an area of 543 km2. Thiruvananthapuram is one of the few cities in India that functions as a capital city, a heritage city, a maritime city, an information technology city, a space research city, a defence city, an automotive tech city, a bioscience city, a tourism city, and a city known for its research and development institutions. It is also among the few cities in the world where both an international airport and an international seaport are located...