Organic Farming in Tamil Nadu — State Resource Guide

Tamil Nadu’s organic farming landscape is shaped by an ancient agricultural heritage and a modern policy framework that seeks to revive both. The state’s TN Organic Farming Policy 2019 set ambitious targets — converting 5 lakh acres to certified organic within five years — and established the institutional infrastructure to make it happen. For farmers in Tamil Nadu, this means better access to training, subsidies, certification, and market linkage than at any time in recent history.

The TN Organic Farming Policy 2019

The policy introduced several structural changes: dedicated organic farming cells at district level, a mandate that all government-run farms become demonstration organic units, and a framework for the Tamil Nadu Organic Certification Department (TNOCD) to scale third-party certification across the state. TNOCD operates as a government-owned certifying body under NPOP, with rates significantly subsidized compared to private certifiers — making certification accessible even to small and marginal farmers holding 1–3 acres.

Key Crops and Growing Regions

Paddy (rice) is the dominant organic crop in Tamil Nadu, particularly in the Cauvery delta districts of Thanjavur, Tiruvarur, and Nagapattinam. The Thanjavur organic cluster, anchored by the Tamil Nadu Agricultural University (TNAU) Thanjavur campus, has documented over 200 traditional rice varieties adapted to tank-fed, low-input cultivation. Varieties like Mappillai Samba, Karuppu Kavuni (black rice), and Kichili Samba are fetching ₹120–200/kg in specialty retail.

Banana cultivation in Trichy, Erode, and Theni districts is undergoing rapid organic transition. The G9 variety under conventional management uses heavy fungicide schedules, but organic farmers are demonstrating successful disease management through hot water rhizome treatment, trichoderma soil inoculation, and intercropping with legumes to suppress nematodes.

Turmeric in Erode (the “Turmeric City of India”) accounts for a large share of India’s turmeric exports. Erode’s organic turmeric clusters, supported by APEDA-registered exporters, are among the most commercially successful organic commodity projects in South India.

Vegetables in the Nilgiris and Kodaikanal hill districts have long been grown with lower chemical input loads than plains. Many hill farmers are converting to certified organic through PGS groups linked to direct supply chains with Ooty and Coimbatore urban consumers.

Vanagam Tank-Fed Farming

Tamil Nadu has over 40,000 traditional irrigation tanks (eries). In the organic context, tank-fed farming is significant because the silt periodically removed from tanks is a rich source of organic matter, and tank commands (ayacut land) typically receive water 3–4 times per year rather than year-round — naturally reducing pest pressure and input dependence. The state government’s Kudimaramath scheme (tank restoration) is aligned with organic farming objectives, and many PKVY clusters are being established in tank ayacut areas.

Sirkazhi and Thanjavur Organic Clusters

The Sirkazhi cluster in Nagapattinam district is one of Tamil Nadu’s showcase PKVY projects. Over 300 acres managed by 60+ farmers have been under organic protocol for more than five years, producing certified organic paddy and black gram. The cluster demonstrates what collective organic transition looks like — shared bio-input production, group certification, and a collective marketing arrangement with a Chennai-based organic retailer.

Thanjavur city hosts the Organic Farmer Producer Company (FPC) of Cauvery Delta, which aggregates produce from 12 villages, handles NPOP certification, and supplies to institutional buyers including hospital canteens and corporate campuses in Chennai.

Subsidies Available

• PKVY: ₹50,000 per cluster of 50 acres over 3 years — covers bio-input kits, vermicompost units, training, and certification.
• State organic input subsidy: ₹10,000/acre for years 1 and 2 of conversion.
• PM-KISAN: ₹6,000/year directly into farmer’s bank account — can fund bio-input purchase.
• Soil Health Card scheme: Free soil testing every 2 years at nearest KVK.