Hydel Power Plants in Tamil Nadu
- Kundah - Bhavani Rivers
- Mettur Tunnel - Kaveri Rivers
- Lower Mettur - Kaveri Rivers
- Aliyar - Aliyar Rivers
- Kodayar - Kodayar Rivers
- Sholaiyar - Sholaiyar Rivers
- Papanasam Hydro Electric Power - Papanasam
- Pykara - Pykara
- Kodamparai - Kodamparai
Soil found in Tamil Nadu
- Alluvial Soil - Thanjavur, Thiruvarur, and Nagapattinam, Villupuram, Cuddalore, Thirunelveli and Kanyakumari.
- Red Loam - Sivagagai, Ramanathapuram
- Saline Soil - Vedaranyam, Coromandal Coast
- Regur or the Black Soil - Madurai, Coimbatore, Virudhunagar, Thuthukudi and Tirunelveli
- Laterite Soil - Kancheepuram, Thanjavur, Thiruvallur, Hills tops of Western ghats and Eastern Ghats.
Minerals Fuels of Tamil Nadu
- Petroluem Lignite - Narimanam (Kaveri Region), Neyveli and Thiruvarur ( Panamgudi)
Thermal Power Plants of Tamil Nadu
- Cuddalore - Neyveli Lignite Corporation
- Thiruvallur - North Chennai Thermal Power Unit - I
- Salem - Mettur Thermal Power Station
- Thuthukudi - Thuthukudi Thermal Power Plant
Metallic Minerals in Tamil Nadu
- Iron ore - Salam, Namakkal and Thiruvannamalai
- Copper - Salam, Nilgiris, Coimbatore, Mamandur and Madurai
- Chromite - Namakkal, Salem, Erode and Tiruchi
- Pyrite - Villupuram
- Bauxite -Namakkal, Salem, Vellore, Coimbatore, Dharmapuri, Villupuram and Madurai
Non-Metallic Minerals in Tamil Nadu
- Mico - Tiruchi, Coimbatore and Ramanathapuram
- Steatite - Cuddalore, Vellore, Tiruchi, Salem and Coimbatore
- Salt - Tuticorin, Chennai, Nagapattinam, Cuddalore and Thiruvarur
- Lime Stone - Tuticorin, Virudhunagar, Tiruchi, Tirunelveli, Salem and Kanchipuram
- Magesite - Cuddalore, Vellore, Coimbatore and Erode