Being India's largest city in the deep south, it is strategically prominent and hosts the Southern Air Command headquarters of the Indian Air Force, the Thumba Equatorial Rocket Launching Station and the upcoming Vizhinjam International Seaport. Thiruvananthapuram is a major tourist centre, known for the Padmanabhaswamy Temple, the beaches of Kovalam and Varkala, the backwaters of Poovar and Anchuthengu and its Western Ghats tracts of Ponmudi and the Agastyamala. In 2012, Thiruvananthapuram was named the best Kerala city to live in, by a field survey conducted by "The Times of India". In 2013, the city was ranked the fifteenth best city to live in India, in a survey conducted by "India Today". Thiruvananthapuram was ranked the best Indian city for two consecutive years, 2015 and 2016, according to the Annual Survey of India's City-Systems (ASICS) conducted by the Janaagraha Centre for Citizenship and Democracy. The city was also selected as the best governed city in India in a survey conducted by Janaagraha Centre for citizenship and democracy in 2017.