Tamil Nadu Guidance

Explore Tamil Nadu

Tamil Nadu's commitment to business has led to a sturdy public infrastructure in the areas of connectivity, water, power, and telecom among others. This has ensured the intact supply chains and channels, and development of human and social capital in line with the rapidly evolving economic landscape.

Choose district to see it on the map

Chennai

Chennai, the capital of Tamil Nadu is one of the main metro and fourth most populated agglomeration in India. The largest industrial and commercial center, Chennai is located on the south-east coast of India. Its rich cultural heritage with bustling economic activities has made it truly a cosmopolitan city successfully drawing people across India and the world. Chennai's economic base is anchored by the automobile, SaaS, medical tourism, hardware manufacturing, data centers and fintech industry.

178.2 sq km
Area
4,646,732
Population
90.18%
Literacy Rate
Airport
Seaport
Railway

*Disclaimer: Districts are categorized into three classes based on the sector-wise incentives offered to them. To learn about the sector-wise incentives offered to various district-class, click .

Class A District*
Class B District*
Class C District*

All Districts

Tamil Nadu is unique in the way that there is equitable development across all districts. For administrative conveniences, the state has been segmented into 38 districts. Every district is distinctive in its own features and specialties while also permeated with the intrinsic local culture.

Class A Districts* (4 districts)

Tiruvallur District

Tiruvallur

Area: 3422.43 sq km

Population: 3,728,104

Literacy: 84.03%

Chennai District

Chennai

Area: 178.2 sq km

Population: 4,646,732

Literacy: 90.18%

Kancheepuram District

Kancheepuram

Area: 1655.94 sq km

Population: 1,166,401

Literacy: 84.49%

Chengalpattu District

Chengalpattu

Area: 2944.96 sq km

Population: 2,556,244

Literacy: 91.88%

Class B Districts* (12 districts)

Salem District

Salem

Area: 5245 sq km

Population: 3,482,056

Literacy: 72.86%

Ranipet District

Ranipet

Area: 2234.32 sq km

Population: 1,210,277

Literacy: 86.08%

Vellore District

Vellore

Area: 2080.11 sq km

Population: 1,614,242

Literacy: 79.17%

Tirupattur District

Tirupattur

Area: 1792.92 sq km

Population: 1,111,812

Literacy: 82.17%

Krishnagiri District

Krishnagiri

Area: 5143 sq km

Population: 1,883,731

Literacy: 71.46%

Karur District

Karur

Area: 2895.57 sq km

Population: 1,064,493

Literacy: 75.6%

Tiruppur District

Tiruppur

Area: 5186.34 sq km

Population: 2,479,052

Literacy: 78.68%

Coimbatore District

Coimbatore

Area: 4723 sq km

Population: 3,458,045

Literacy: 83.98%

Nilgiris District

Nilgiris

Area: 2452.5 sq km

Population: 735,394

Literacy: 85.2%

Erode District

Erode

Area: 5722 sq km

Population: 2,251,744

Literacy: 72.58%

Namakkal District

Namakkal

Area: 3368.21 sq km

Population: 1,726,601

Literacy: 74.63%

Tiruchirapalli District

Tiruchirapalli

Area: 4407 sq km

Population: 2,722,290

Literacy: 83.23%

Class C Districts* (22 districts)

Nagapattinam District

Nagapattinam

Area: 2715.83 sq km

Population: 1,616,450

Literacy: 83.59%

Thiruvarur District

Thiruvarur

Area: 2715.83 sq km

Population: 1,616,450

Literacy: 83.59%

Mayiladuthurai District

Mayiladuthurai

Area: 1172 sq km

Population: 918,356

Literacy: 78.78%

Thanjavur District

Thanjavur

Area: 3396.57 sq km

Population: 2,405,890

Literacy: 82.64%

Ariyalur District

Ariyalur

Area: 1940 sq km

Population: 754,894

Literacy: 71.34%

Pudukkottai District

Pudukkottai

Area: 4663 sq km

Population: 1,618,345

Literacy: 77.19%

Kallakurichi District

Kallakurichi

Area: 3520.37 sq km

Population: 1,370,281

Literacy: 63.49%

Cuddalore District

Cuddalore

Area: 3678 sq km

Population: 2,605,914

Literacy: 78.04%

Perambalur District

Perambalur

Area: 1757 sq km

Population: 565,223

Literacy: 74.32%

Villupuram District

Villupuram

Area: 3725.54 sq km

Population: 3,458,873

Literacy: 71.88%

Tiruvannamalai District

Tiruvannamalai

Area: 6191 sq km

Population: 2,464,875

Literacy: 74.21%

Tirunelveli District

Tirunelveli

Area: 3842.37 sq km

Population: 1,665,253

Literacy: 82.5%

Thoothukudi District

Thoothukudi

Area: 4621 sq km

Population: 1,750,176

Literacy: 86.16%

Tenkasi District

Tenkasi

Area: 2916.13 sq km

Population: 1,407,627

Literacy: 87.71%

Virudhunagar District

Virudhunagar

Area: 4288 sq km

Population: 1,942,288

Literacy: 80.15%

Ramanathapuram District

Ramanathapuram

Area: 4068.31 sq km

Population: 1,353,445

Literacy: 80.72%

Theni District

Theni

Area: 3066 sq km

Population: 1,245,899

Literacy: 77.26%

Sivagangai District

Sivagangai

Area: 4086 sq km

Population: 1,339,101

Literacy: 79.85%

Madurai District

Madurai

Area: 3741.73 sq km

Population: 3,038,252

Literacy: 83.45%

Dindigul District

Dindigul

Area: 6266.64 sq km

Population: 2,159,775

Literacy: 76.26%

Dharmapuri District

Dharmapuri

Area: 4497.77 sq km

Population: 1,506,843

Literacy: 68.54%

Kanyakumari District

Kanyakumari

Area: 1672 sq km

Population: 1,870,374

Literacy: 91.75%

*Disclaimer: Districts are categorized into three classes based on the sector-wise incentives offered to them. To learn about the sector-wise incentives offered to various district-class, click .

© 2025 All Rights Reserved