Information:  - India, officially the Republic of India ("Bhrat Gaarjya"), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country (with over 1.2 billion people), and the most populous democracy in the world. It is bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast. It shares land borders with Pakistan to the west; China, Nepal, and Bhutan to the northeast; and Myanmar (Burma) and Bangladesh to the east. In the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives. India's Andaman and Nicobar Islands share a maritime border with Thailand and Indonesia. Its capital is New Delhi; other metropolises include Mumbai, Kolkata, Chennai, Bangalore, Hyderabad and Ahmedabad.  - Visakhapatnam (nicknamed Vizag) is the largest city, both in terms of area and population in the Indian state of Andhra Pradesh. It is located on the coast of Bay of Bengal in the north eastern region of the state. It is the administrative headquarters of Visakhapatnam district and also the "Financial Capital of Andhra Pradesh". , the population of the city was recorded as 2,035,922, making it the 14th largest city in the country. The Visakhapatnam Metropolitan Region is the 9th most populous in India with a population of 5,340,000  - Gajuwaka is an area lying approximately 15 km to the south of Visakhapatnam City in the state of Andhra Pradesh, India. Since most of the heavy industries established in Visakhapatnam, like HPCL and Vizag Steel, lie in close proximity of Gajuwaka, its growth has mirrored that of Visakhapatnam. On November 21, 2005, the Gajuwaka Municipal Corporation was merged into the Greater Visakhapatnam Municipal Corporation (GVMC). Gajuwaka Mandal have Highest per capita income in Andhra Pradesh.  - Visakhapatnam district is a district in the Indian state of Andhra Pradesh. It is one of the nine coastal districts in the state, with the administrative headquarters located at Visakhapatnam.  - The Bay of Bengal, the largest bay in the world, forms the northeastern part of the Indian Ocean. Roughly triangular, it is bordered mostly by India and Sri Lanka to the west, Bangladesh to the north, and Myanmar (Burma) and the Andaman and Nicobar Islands (India) to the east.  - Andhra Pradesh() is one of the 29 states of India, situated on the southeastern coast of the country. The state is the eighth largest state in India covering an area of . As per 2011 Census of India, the state is tenth largest by population with 49,386,799 inhabitants.  - Duvvada ( Telugu :  ) is a suburban area of Visakhapatnam city , under the Revenue Mandal of Gajuwaka .    What is the relationship between 'duvvada' and 'visakhapatnam district'?
Answer:
located in the administrative territorial entity