Tamil Nadu (; Tamil: [ˈtamiɻ ˈnaːɽɯ] (listen), abbr. TN) is a state in southern India. It is the tenth largest Indian state by area and the sixth largest by population. Its capital and largest city is Chennai. Tamil Nadu is the home of the Tamil people, whose Tamil language—one of the longest surviving classical languages in the world—is widely spoken in the state and serves as its official language. The state lies in the southernmost part of the Indian peninsula, and is bordered by the Indian union territory of Puducherry and the states of Kerala, Karnataka, and Andhra Pradesh, as well as an international maritime border with Sri Lanka. It is bounded by the Western Ghats in the west, the Eastern Ghats in the north, the Bay of Bengal in the east, the Gulf of Mannar and Palk Strait to the south-east, and the Indian Ocean in the south. The at-large Tamilakam region that has been inhabited by Tamils was under several regimes, such as the Sangam era rulers of the Chera, Chola, and Pandya clans, the Pallava dynasty, and the later Vijayanagara Empire, all of which shaped the state's cuisine, culture, and architecture. After the fall of the Kingdom of Mysore, the British colonised the region and administered it as part of the Madras Presidency, headquartered at the city of Madras, now known as Chennai. After India's Independence in 1947, the Madras State came into existence, whose borders were linguistically redrawn by the States Reorganisation Act, 1956, losing territory to Kerala, Karnataka and Andhra Pradesh. The state was renamed as Tamil Nadu in 1969. It is home to a number of historic buildings, multi-religious pilgrimage sites, hill stations and three World Heritage Sites.The economy of Tamil Nadu is the second-largest in India, with a gross state domestic product (GSDP) of ₹24.85 lakh crore (US$310 billion) and has the country's 11th-highest GSDP per capita of ₹225,106 (US$2,800). It ranks 11th among all Indian states in human development index. Tamil Nadu is the most urbanised state in India, and one of the most industrialised states; the manufacturing sector accounts for more than one-third of the state's GDP. Its tourism industry is the largest among the Indian states. The Tamil film industry plays an influential role in the state's popular culture.

Mannargudi (Tamil pronunciation: [mannaːrgɯɖi]) is a town in Thiruvarur district in the Indian state of Tamil Nadu. It is the headquarters of the Mannargudi taluk. The town is located at a distance of 28 km (17 mi) from the district headquarters Thiruvarur, 36 km from Kumbakonam, 40 km from Thanjavur and 310 km (190 mi) from the state capital Chennai. Mannargudi is known for the Rajagopalaswamy temple, a prominent Vaishnavite shrine. Mannargudi was founded as an agraharam village by the Medieval Cholas during the 7th century A.D. The town was subsequently ruled by various dynasties including the Chola king Rajadhiraja Chola (1018–1054 CE), Vijayanagar Empire, Delhi Sultanate, Thanjavur Nayaks, Thanjavur Marathas and the British Empire. Mannargudi was a part of the erstwhile Tanjore district until India's independence in 1947 and Thanjavur district until 1991. It subsequently became a part of the newly formed Tiruvarur district. The town is known for agriculture, metal working and weaving. The region around Mannargudi has considerable mineral deposits. Majority of the people living in Mannargudi and its surrounding villages belong to the Raja Kallar caste (Mukkuthalor); the King for Raja, thieves for Kallar community, King in otherwords "Mannars", which is why the name came as Mannar - King; Living - Kudi. Prominent people like Gopalaswamy Thenkondar Ex.M.P (Congress), Mannai Narayanaswamy Ondhriyar Ex.MLC Ex. Minister for Food and Co-operation(DMK), V.K. Sasikala Koorsar (ADMK), Manorama Kilakudaiyar (Veteran Tamil Actress). This town is one of the VIP towns in Tamilnadu Politics. Mannargudi is administered by a municipality established in 1866. As of 2011, the municipality covered an area of 11.55 km2 (4.46 sq mi) and has a population of 67,999. Mannargudi comes under the Mannargudi assembly constituency which elects a member to the Tamil Nadu Legislative Assembly once every five years and it is a part of the Thanjavur constituency which elects its Member of Parliament (MP) once in five years. Roadways are the major mode of transportation to the town and it also has rail connectivity. The nearest seaport, Nagapattinam Port, is located 52 km (32 mi) from Mannargudi, while the nearest airport, Tiruchirappalli International Airport, is located 97 km (60 mi) from the town. Mannargudi is a fourth largest town in delta region after Thanjavur, Kumbakonam and Nagapattinam.