Answer the following question: Information: - 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. - Avadi is a suburb city of Chennai and a municipality in Thiruvallur in the state of Tamil Nadu, India. Situated about 25km west of Chennai, it is surrounded by major defense establishments. The neighborhood is served by Avadi Railway Station of the Chennai Suburban Railway. As of 2011, the town had a population of 345,996. The Heavy Vehicles Factory (HVF) is located in Chennai Avadi. - The Chennai Suburban Railway is a commuter rail system in the city of Chennai (Madras), Tamil Nadu, India operated by the Southern Railway, one of the operating railway zones of Indian Railways. - Tamil Nadu (English pronunciation: ; ""; : ; literally 'The Land of Tamils' or 'Tamil Country') is one of the 29 states of India. Its capital and largest city is Chennai (formerly known as Madras). Tamil Nadu lies in the southernmost part of the Indian Peninsula and is bordered by the union territory of Puducherry and the South Indian states of Kerala, Karnataka, and Andhra Pradesh. It is bounded by the Eastern Ghats on the north, by the Nilgiri, the Anamalai Hills, and Kerala on the west, by the Bay of Bengal in the east, by the Gulf of Mannar and the Palk Strait on the southeast, and by the Indian Ocean on the south. The state shares a maritime border with the nation of Sri Lanka. - Ambattur is a neighbourhood of Western Chennai, located in the Ambattur taluk of the Chennai Corporation in the Indian state of Tamil Nadu. It was made part of the Chennai Corporation in 2011. Closer to Anna Nagar, Padi and Avadi, Ambattur is a fast developing residential locality and manufacturing hub of Chennai. It covers an area of 45km. The neighbourhood is served by Ambattur railway station of the Chennai Suburban Railway. Ambattur has its origins in a village of the same name which can be located at present as areas opposite to Ambattur telephone exchange. Ambattur was a village with large extents of agricultural farm lands irrigated by the once-sprawling Ambattur Lake. The growth was heightened after Ambattur industrial estate was established in 1964. In 2011, the neighbourhood had a population 466,205. - 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. - The Heavy Vehicles Factory (HVF) is located at Avadi in Chennai in the Indian state of Tamil Nadu. - South India is the area encompassing the Indian states of Tamil Nadu, Andhra Pradesh, Karnataka, Kerala, and Telangana as well as the union territories of Andaman and Nicobar, Lakshadweep and Puducherry, occupying 19.31% of India's area. Covering the southern part of the peninsular Deccan Plateau, South India is bounded by the Bay of Bengal in the east, the Arabian Sea in the west and the Indian Ocean in the south. The geography of the region is diverse with two mountain ranges - the Western and Eastern Ghats, bordering the plateau heartland. Godavari, Krishna, Kaveri, Tungabhadra and Vaigai rivers are important non-perennial sources of water. Bangalore, Chennai, Hyderabad, Visakhapatnam, Vijayawada, Coimbatore and Kochi are the largest urban areas. - Ambattur taluk is a taluk of Tiruvallur district of the Indian state of Tamil Nadu. The headquarters of the taluk is the town of Ambattur. This taluk was created from a division of Ponneri Taluk. The RTO code for Ambattur taluk is TN-13. The Revenue villages in Ambattur taluk are Alathur, Ambattur, Arukkambakkam, Athipattu, Kadavoor, Kakkapallam, Kilkondaiyur, Koilpadagai, Korattur, Mannur, Melpakkam, Menambedu, Mitnamallee, Morai, Mugapair, Muthapudhupattu, Oragadam, Padi, Palavode, Pammadukulam, Pandeswaram, Pattravakkam, Pothur, Thirumullaivoyal, Vellacheri and Vellanur. - The Coromandel Coast is the southeastern coast region of the Indian Subcontinent, between the Eastern Ghats and the Bay of Bengal of the Indian Ocean. The coastline runs between False Divi Point in the north to Kanyakumari in the south. Its definition can also include the northwestern coast of the island of Sri Lanka. - Senthil Nagar is a residential area located between Avadi and Ambattur railway stations in the city of Chennai comes under Thiruvallur district . It is a developing township mainly focused on housing units . Valampuri Vinayagar Temple , Thirumullaivoyil Railway Station , Rangaswamy Matriculation School , Tiny Tot Kids School , Anna Auditorium and Kalaimagal Matriculation School are the main reference points for this small residential township , also is the famous '' banyan tree '' ( Aala maram ) . Thirumullaivoyal railway station is the nearest railway station for senthil nagar and is located about 500 meters from the Mahathma Gandhi Main road , ( senthil nagar ) . The railway station connects local areas like Chennai central station , Madras beach station , Arakkonam and Tiruvallur . By road it is nearly 22 km from Chennai central station , 4 km from Chennai bye pass and 24 km from Chennai domestic airport . Ambattur O.T is nearly about 2.5 km and 2.2 km to Thirumullaivoyil from senthil nagar respectively . Chennai bye pass located about 4 km from senthil nagar which connects way to NH4 ( Bangalore Highway ) , G.S.T road , Kolkata Highway . It is really an improving area and it is active since 1970 , but for the past few years , development is fast with many facilities like public transit system , medical clinics , commercial complexes , schools , college , auditorium , bus stand , play ground , etc. . . Bus routes connecting Senthil nagar via Thirumullaivoyil are M147S ( to T.Nagar ) , 41D ext. ( to Mandaveli ) and 71F to C.M.B.T via Ambattur , also train routes available to most parts of the city and its outskirts . It comes under Ward 11 of Avadi Municipality . The ward councilor is Mr. C. Gopalakirshnan . Address of the councilor : No 8 , Anna Street , Senthil Nagar , Thirumullaivoyal , Chennai - 600 062 . Official Link : https://www.facebook.com/pages/Thirumullaivoyil-Senthil-Nagar/124135344305375 - Chennai ; formerly known as Madras or ) is the capital of the Indian state of Tamil Nadu. Located on the Coromandel Coast off the Bay of Bengal, it is one of the biggest cultural, economic and educational centres in South India. According to the 2011 Indian census, it is the sixth-largest city and fourth-most populous urban agglomeration in India. The city together with the adjoining regions constitute the Chennai Metropolitan Area, which is the 36th-largest urban area by population in the world. Chennai is among the most visited Indian cities by foreign tourists. It was ranked 43rd most visited city in the world for year 2015. The Quality of Living Survey rated Chennai as the safest city in India. Chennai attracts 45 percent of health tourists visiting India, and 30 to 40 percent of domestic health tourists. As such, it is termed "India's health capital". As a growing metropolitan city in a developing country, Chennai confronts substantial pollution and other logistical and socio-economic problems. - Anna Nagar (formerly known as Naduvakkarai), is a neighbourhood in the metropolitan city of Chennai, India. Named after the Tamil leader C. N. Annadurai, it is located in the north-western part of Chennai and forms a part of the Aminjikarai taluk and the Anna Nagar Zone. It is one of the prime residential areas in Chennai. - The Chennai Metropolitan Area is the fourth most populous, and the fourth largest metropolitan area in India and is the 22nd most populous city in Asia or the 40th most populous city in the world. The CMA consists of the metropolitan city of Chennai (Madras) and its suburbs. The Chennai Metropolitan Development Authority (CMDA) is the nodal agency that handles town planning and development within the metro area. Since 1974, an area encompassing 1189km around the city has been designated as the Chennai Metropolitan Area (CMA) and the CMDA has been designated as the authority to plan the growth of the city and the area around it. Given the information, choose the subject and object entities that have the relation of 'instance of'.
Answer:
senthil nagar , neighborhood