|• Type||First Grade Municipality|
|• Body||Aranthangi Municipality|
|Time zone||IST (UTC+5:30)|
The town lies 10 degrees north in latitude and 70 degrees east in longitude and lies 32.31 m above mean sea level. The small river Vellar goes through the outer part of Aranthangi.
The main centre of attraction is a ruined fort. The walls are not constructed of brick or stone. Large interstices are filled with mud. There are no ruins of palaces or any other striking building inside. There is no indication when the fort could have been built. A line of Tondaimans who were unconnected with those of Pudukkottai, were in power here in the fifteenth and sixteenth centuries, and it is believed that they constructed it. The temple of Rajendra Chola Varma in the town seems to have been built in the eleventh century.
Aranthangi was ruled by Thondaimans (different from Pudukkottai Thondaimans) in earlier days.(The time is unknown; see the book Pudukkottai Maavatta Varalaru.)
The town has one sugar factory and a chemical factory in its outskirts. Aranthangi has a fish market, a daily market (santhai) ,uzhavar sandai and the weekly santhai is held every Tuesday. Sea cuisine is well known here because of the proximity to coastal towns. Aranthangi fish curry is famous locally.
This town can be reached by bus and trains. There was one runway constructed during the World War[which?], but now it is demolished. The two main state highways passing through: Thanjavur-Sayalkudi Road and Trichy Mimisal Road. There is one bus stand which has up-to Chennai route and tirupathi route. Buses are often available for Pudukkottai and karaikudi which is near Trichy (52 km).
The main source of income is agriculture. Paddy, groundnut and sugarcane are the major crops. Especially paddy income sources from some villages like Saliyam, Ambalavananendal, semmanampottal, pandipathiram, avudaiyarkoil Mavadikkottai, Melmangalam, Vallavari, Arasarkulam, Vettivayal, Maivayal, Ayingudi, Manavanallor, Nagudi and Kalugumanai. Fishing is done by the people living near the sea shore: Kattumavadi, Manamelkudi,Pradhabiraman pattinam, Mimisel, vallam, Jagathapattinam and Kottaipattinam.
The second largest town in Pudukkottai district after the headquarters, Aranthangi was the most populous locality in the south of the Thanjavur district till it was added to Pudukkottai district in 1974. The main areas are Kottai,L.N.Puram,Pakkudi,Vikneshwarapuram,Sivan Kovil & Vadiyan street and all over.
According to 2011 census, Aranthangi had a population of 40,814 with a sex-ratio of 1,030 females for every 1,000 males, much above the national average of 929. A total of 4,340 were under the age of six, constituting 2,203 males and 2,137 females. Scheduled Castes and Scheduled Tribes accounted for 5.75% and 0.76% of the population respectively. The average literacy of the town was 80.96%, compared to the national average of 72.99%. Aranthangi had 10,130 households. There were 13,021 workers, comprising 462 cultivators, 701 main agricultural labourers, 313 in household industries, 10,033 other workers, 1,512 marginal workers, 74 marginal cultivators, 156 marginal agricultural labourers, 253 marginal workers in household industries and 1,029 other marginal workers.
The minimum temperature of Aranthangi is 27.1 °C and the maximum temperature is 46.4 °C. The seasonal climate conditions are moderate and the weather is uniformly salubrious. The town gets major rainfall during the North east monsoon period. The Annual normal rainfall varies from 300 mm to 800 mm.
Several schools and colleges are in Aranthangi. Half of the pupils get their education from government and government-aided schools. There are more equipped private schools in and around the town.
List of educational institutions in Aranthangi
matriculation and higher secondary schools:
- Ideal matric.hr.sec.school,Aranthangi
Doctors CBSE school - Admission opens
- Shivaani Vidhyaa Mandir, Aranthangi 
- Doctors School, Aranthangi [permanent dead link]
- St. Joseph Nursery and Primary School, Aranthangi which runs of 40 years which gives best Schooling for kids.
- Selection Matriculation Higher Secondary School,Arantangi
Aranthangi has a private arts and science college. It has a government polytechnic college, which is top ranked among Tamil Nadu's polytechnic colleges. Recently a government arts and college was opened inside the government polytechnic college campus, near the college of education and arts and science college. The international standard polytechnic is in this town. There are two government higher secondary schools for boys and girls separately.
Places of worship
Aranthangi Veeramakaliyamman Temple,Kottai Sivan Kovil,Kaali Kovil Magilankottai, Ambalavananendal Murugan Temple, Mavadikkottai Sri kallalakar Ayyanar,Avanathankottai Eluvichi Amman Kovil,Kali amman kovil,Ayyanar kovil, MavadikkottaiSr Kamachi Ammaan, Mavadikkottai Sri sithivinayakar temple, kathambara kaaliamman temple, Karudaiyar Kaaliamman Temple,valaramanickam periyanayagi amman,Pattharasarkottai Vaaleeswarar-Vaalaambigai Temple, Merpanaikadu sri mazhai mariyamman aalayam, maivayal sri kalahasthi vinayagar aalayam manavanalloor sri muthumariyamman aalayam Konnakkadu sri kamatchi amman temple', Vadakarai Murugan Koil, Perumal Temple, Siva Temple, Iyyappan Temple, Porkodaiyar Temple, Silattur MuthuMariyamman Temple, Madurai Veeran Temple, Vigneshvararpuram - Nalla Kathayiamman -Valmuneeshvarar Temple, Manchakkarai muthumariyamman koil, manchakkarai ayyanar koil, Aranthangi Periya pallivasal, Melmangalam Pallivasal, karanikadu tharga, Vettivayal Jumaah pallivasal, karuppur, Kottaipattinam Tharga, Nagudi Pallivasal, Kurumbur Muthumariamman Temple, poovathakkudi Athi piramar temple, Isukupatti Ayyanar Kovil Sengamari-Kovilkottai etc...
Veeramakaliyamman temple car festival is held in the month of Aadi every year.
Avudaiyarkoil is 15 km from Aranthangi. The Athmanathaswami temple here contains graceful life-size sculptures which are of absorbing interest. This is the most ornate temple full of bursting brogue sculptures. It is called Thirupperundurai in inscriptions and intimately associated with Siva saint Manickavasakar. The sacred book Saivism, Thiruvasakam of Manickavasakar originated from this shrine. The God is worshiped formless and no images in the sacnithanam. The utsavamurti of the temple is Manikkavasakar. The mandapams are full of breathtaking sculptures, a veritable gallery of sculptures. The car is renowned for its wood carvings. The temple is noted for zephyr (granite roof) work. The sanctum sanctorum is covered with copper plate and is similar to the Chidambaram Natarajar temple.
Poovathakkudi (Athi Piramar Temple)
Poovathakkudi is 13 km from Aranthangi. The Athi Piramar temple was powerful god.
Isukupatti Ayyanar Temple (Sengamari-Kovilkottai)
Temple is located from aranthangi is 15km.One of the powerful god of the town. It has many worshippers. Famous for Power of god. Bus route from Aranthangi to Arimalam
The government hospital is on the Pattukottai road and many private hospitals are available. Subramania Puram, Nagudi, Poovathakkudi and Arasarkulam have separate government hospitals.
- "Census Info 2011 Final population totals". Office of The Registrar General and Census Commissioner, Ministry of Home Affairs, Government of India. 2013. Retrieved 26 January 2014.
- "Census Info 2011 Final population totals - Aranthangi". Office of The Registrar General and Census Commissioner, Ministry of Home Affairs, Government of India. 2013. Retrieved 26 January 2014.
- "Population By Religious Community - Tamil Nadu" (XLS). Office of The Registrar General and Census Commissioner, Ministry of Home Affairs, Government of India. 2011. Retrieved 13 September 2015.