Coimbatore earned this title due to its extensive textile manufacturing industry and industrial development dating back to the colonial period.

The Meenakshi Temple's primary deity is Meenakshi, considered an incarnation of Parvati, with Sundareshwarar (Shiva) as the consort deity.

Chennai Port is one of India's oldest and busiest ports, handling significant container traffic and serving as a major international trade gateway.

Kalakshetra Foundation, established in 1936, is dedicated to the preservation and promotion of classical Indian arts, particularly Bharatanatyam dance.

Anai Mudi (2,695 m) is the highest peak in the Western Ghats and is located in the Idukki district of Kerala, but the highest peak within Tamil Nadu territory is Doddabetta. However, Anai Mudi is the highest in the Western Ghats region.

The Thirukkural, written by Tiruvalluvar, comprises 1330 couplets divided into three sections: Aram (virtue), Porul (wealth), and Kamam (love).

Erode district, located in the Nilgiri foothills, is known as the 'Spice Garden of India' and leads in spice production, especially black pepper and turmeric.

The Kaveri River, also known as Cauvery, is the longest river in Tamil Nadu with a total length of 805 km, and it shares its course with Karnataka.

Chennai Port (formerly Madras Port) is the primary and oldest port in Tamil Nadu, established in 1881, and serves as the gateway for maritime trade.

The Mid Day Meal Scheme, implemented nationwide and particularly in Tamil Nadu, provides nutritious meals to students to improve their health and school attendance.