Ariyalur is a district in central Tamil Nadu known for its limestone deposits, cement industries, fossils and outstanding Chola-era heritage. Ariyalur town serves as the district headquarters. The present district was created after the bifurcation of Perambalur district and has functioned separately since 23 November 2007. Ariyalur covers about 1,940 sq. km and had a population of 7,54,894 according to Census 2011. Gangaikonda Cholapuram, Karaivetti Bird Sanctuary and the fossil-rich landscape around Varanavasi are among its best-known attractions.
Quick Overview of Ariyalur District
| Particular | Details |
| State | Tamil Nadu |
| District Headquarters | Ariyalur |
| District Formation | 23 November 2007 |
| Area | 1,940 sq. km |
| Population | 7,54,894 |
| Literacy Rate | 71.3% |
| Revenue Divisions | 2 |
| Taluks | 4 |
| Revenue Villages | 195 |
| Development Blocks | 6 |
| Village Panchayats | 201 |
| Municipalities | 2 |
| Town Panchayats | 2 |
| Main Court | Principal District Court, Ariyalur |
| Main Railway Station | Ariyalur Railway Station |
| Railway Station Code | ALU |
| Railway Zone | Southern Railway |
| Railway Division | Tiruchchirappalli Division |
| Main Ariyalur PIN Code | 621704 |
| Nearest Airport | Tiruchirappalli International Airport |
| Official District Website | ariyalur.nic.in |
The Census of India records a district literacy rate of 71.3%, while the present district administration lists two revenue divisions, four taluks, six blocks and 201 Village Panchayats.
Location of Ariyalur District
Ariyalur is located in central Tamil Nadu, around 265 km from Chennai. Its position between Tiruchirappalli, Thanjavur, Perambalur and Cuddalore districts gives it good access to several important cities of central and eastern Tamil Nadu.
The district is bordered by:
- Cuddalore district to the north
- Thanjavur district to the south
- Cuddalore and Thanjavur districts to the east
- Perambalur and Tiruchirappalli districts to the west
Ariyalur’s geology is one of its most distinctive features. Much of the area was under the sea millions of years ago, and sedimentary formations have preserved fossils of plants and animals. Limestone deposits also support a major cement industry, which explains the district’s description as the “Land of Cements.”
Administration of Ariyalur District
Ariyalur town is the administrative headquarters. The district is divided into two Revenue Divisions:
- Ariyalur
- Udayarpalayam
It has four taluks:
- Ariyalur
- Sendurai
- Udayarpalayam
- Andimadam
Ariyalur Revenue Division covers Ariyalur Taluk, while Udayarpalayam Revenue Division covers Udayarpalayam, Sendurai and Andimadam taluks. The district contains 195 Revenue Villages and 15 firkas.
The six development blocks are:
- Ariyalur
- Thirumanur
- Sendurai
- Jayankondam
- Andimadam
- Palur
The district has two municipalities – Ariyalur and Jayankondam – and two Town Panchayats, Udayarpalayam and Varadharajanpettai.
Ariyalur District Court
The principal judicial establishment serving the district is the Principal District Court, Ariyalur, operating from the Combined District Court complex.
The district judicial structure includes civil and criminal courts along with subordinate judicial establishments. A separate Combined Court complex also operates at Jayankondam for cases arising from that part of the district.
Citizens can use the official eCourts system to check case status, hearing dates, cause lists, orders and CNR details.
District Court Location
The main judicial complex is located at:
Combined District Court Campus, Ariyalur, Tamil Nadu – 621704
Official legal-services records identify the District Legal Services Authority as functioning from the Combined District Court Campus at Ariyalur – 621704.
The court is within Ariyalur town and can be reached by autorickshaw, taxi or local road transport from the railway station and bus stand.
Ariyalur Railway Station
Ariyalur Railway Station is the principal railway station serving the district headquarters.
Railway Station Code: ALU
Southern Railway lists Ariyalur under the Tiruchchirappalli Division. The station lies on the important Chennai–Tiruchchirappalli chord-line route and provides useful connectivity towards Chennai, Tiruchirappalli and other destinations.
The district administration places Ariyalur Railway Station about 70 km by rail from Tiruchirappalli and 267 km from Chennai.
Ariyalur Railway Station Location
Ariyalur Railway Station is located within Ariyalur town, close to the main urban and commercial areas.
Passengers arriving at the station can normally continue their journey by:
- Autorickshaw
- Local taxi
- Bus
- Private vehicle
The station is particularly useful for visitors travelling onward to Gangaikonda Cholapuram, Karaivetti Bird Sanctuary and other attractions in the district.
Road Connectivity
Ariyalur has road links with Tiruchirappalli, Perambalur, Thanjavur, Jayankondam, Chidambaram and surrounding towns.
The district administration places Ariyalur around:
- 65 km from Tiruchirappalli
- 30 km from Perambalur
- 44 km from Thanjavur
National and state highways provide the main road connections, while government and private buses link Ariyalur with nearby towns and cities.
Nearest Airport to Ariyalur
The nearest major airport is Tiruchirappalli International Airport, around 75 km from Ariyalur.
Travellers arriving by air can continue from Tiruchirappalli to Ariyalur by road or train.
Ariyalur Pin Code
The main PIN code of Ariyalur town is 621704. India Post lists Ariyalur Sub Post Office and Ariyalur Collectorate under this PIN.
Other important postal codes in the district include:
- Sendurai – 621714
- Jayankondacholapuram – 621802
- Udayarpalayam – 621804
Therefore, 621704 should not be used for every address in Ariyalur district. The correct PIN depends on the locality and serving post office.
Major Tourist Places in Ariyalur District
Gangaikonda Cholapuram
Gangaikonda Cholapuram is the district’s most important heritage attraction. Rajendra Chola I established it as an imperial capital after his northern campaigns, and the Gangaikondacholisvarar Temple is now part of the UNESCO-listed Great Living Chola Temples. The site is around 45 km by road from Ariyalur.
Karaivetti Bird Sanctuary
Karaivetti Bird Sanctuary is a major freshwater wetland about 20 km from Ariyalur. It covers roughly 453.7 hectares and provides habitat for resident and migratory birds. It is also recognised as a Ramsar wetland.
Field Fossil Museum, Varanavasi
The Field Fossil Museum at Varanavasi displays fossils, petrified wood and geological specimens associated with Ariyalur’s remarkable prehistoric landscape. Its exhibits include ammonites and materials from several geological periods.
FAQs About Ariyalur District
Q. Which railway station should I use for visiting Gangaikonda Cholapuram?
Ariyalur Railway Station is a practical option, particularly for travellers using the Chennai–Tiruchirappalli line. Gangaikonda Cholapuram is about 45 km away by road, so a bus, taxi or other road connection is needed for the final journey.
Q. Can visitors enter the Varanavasi Fossil Museum every day?
Not quite. The official district tourism page lists visiting hours as 10:30 AM to 6:30 PM and states that the museum is closed on Fridays, second Saturdays and government holidays. Checking before a special trip is advisable.
Q. When is the best time to visit Karaivetti Bird Sanctuary?
The best period for birdwatching is generally during the cooler months when migratory birds are present. The district tourism information recommends roughly October to March.
Q. Is Ariyalur suitable for a day trip from Tiruchirappalli?
Yes. Ariyalur is about 65 km by road from Tiruchirappalli, so a same-day trip is practical. Visitors should choose only one or two attractions, such as the fossil museum and Karaivetti Sanctuary, or Gangaikonda Cholapuram, rather than trying to cover the entire district in one day.
