Chennai, Tuticorin, and Ennore are all major ports in Tamil Nadu under the Ministry of Shipping. Ennore Port was made a major port in 2020.

The Chola dynasty established a formidable navy to dominate Indian Ocean trade routes, extending their maritime influence to Southeast Asia.

Multiple government schemes and community-led initiatives focusing on rainwater harvesting, groundwater recharge, and water conservation have been the primary strategies addressing water scarcity in Tamil Nadu's rural and urban areas since 2020.

The Chola dynasty, particularly under Raja Raja Chola I, established a sophisticated administrative and revenue system that became a model for Indian governance.

Erode is known as the 'Spinning Hub' of India with the highest concentration of spinning mills, producing yarn for both domestic and export markets.

Sangam literature contains references to extensive trade between Tamil kingdoms and the Roman Empire, including mentions of Roman merchants in ports like Puhar.

The Mridangam, central to Carnatic music, has historical roots in the Chola region and was patronized by Chola rulers and temples.

Tiruppur is called the 'Manchester of South India' due to its thriving textile and hosiery industries.

Tamil Nadu introduced its Renewable Energy Policy in 2011, making it a leader in renewable energy production in India.

Poompuhar (ancient Kaveripattinam) was the principal port city of the Chola Empire, crucial for its maritime commerce.