Andhra Pradesh comprises two major regions, namely Rayalaseema in the south-west and Coastal Andhra bordering the Bay of Bengal in the east and north-east. The state has thirteen districts, nine located in Coastal Andhra and four in Rayalaseema. The state also has a union territory, Yanam – a district of Puducherry which lies to the south of Kakinada in the Godavari delta on the eastern side of the state. It is the only state with three de jure capitals. The largest city and commercial hub of the state, Visakhapatnam being the executive capital while Amaravati and Kurnool are legislative and judicial capitals respectively. The economy of Andhra Pradesh is the seventh-largest state economy in India with in gross domestic product and a higher than national average per capita GDP of . Andhra Pradesh ranks 27th among Indian states in Human Development Index (HDI). Andhra Pradesh has a jurisdiction over almost of territorial waters.