Tamil Nadu has historically been an agricultural state, while its advances in other fields launched the state into competition with other areas. Even so, Tamil Nadu is a leading producer of agricultural products in India. Tamil Nadu agriculture is heavily dependent on the river water and Monsoon rains. The perennial rivers are Palar, Cheyyar, Ponnaiyar, Kaveri, Meyar, Bhavani, Amaravati, Vaigai, Chittar & Tamaraparani. Non-perennial rivers include the Vellar, Noyal, Suruli, Gundar, Vaipar, Valparai and Varshali. Tamil Nadu is also the leading producer of kambu, corn, rye, ground nuts, oil, seeds and sugar cane in India.
Paddy fields in Nagercoil