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Industries

Your industry, your numbers

Every industry loses money in its own places and follows its own tax and cost rules. Pick yours to see three things in five minutes, or explore Tamil Nadu’s industry map.

  1. Where money usually leaksThe five or six places businesses like yours lose margin, credit or cash, with a quick check you can tick.
  2. The rules that applyGST, TDS and cost-record rules written for your industry, with the official sources.
  3. What to do about itWhat we check, the free tools that fit, and the service to ask for.

Pick your industry

Industry

Hospitals and Clinics

Exempt healthcare and taxable extras under GST, package costing against insurer and scheme rates, doctor payouts, and cost records for hospital companies.

5 leak points · rules guide · 3 servicesCheck your industry →
Industry

Handloom Weaving and Textiles

Costing a saree at today's silk and zari prices, weavers' job work and TDS, GST after the 2025 rate changes, payment rules for micro and small suppliers, and seasonal working capital.

5 leak points · rules guide · 3 servicesCheck your industry →
Industry

Leather and Footwear

Yield from hide to finished leather, job work between tanneries and footwear units, GST after the 2025 rate changes, export credits and long working-capital cycles.

4 leak points · rules guide · 3 servicesCheck your industry →
Industry

Rice Mills

Out-turn from paddy to rice, by-product credit for bran and husk, hulling for others against milling on your own account, GST on packed rice, and seasonal stock.

4 leak points · rules guide · 3 servicesCheck your industry →
Industry

Sugar Mills

Cane recovery and crushing days, costing sugar with molasses, bagasse, ethanol and power, stock valuation, and the cost records that sugar companies must keep.

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Industry

Textile Processing and Dyeing

Cost per kilogram by shade, effluent treatment cost, job-work rates and GST credit that builds up, for dyeing, bleaching, printing and finishing units.

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Industry

Engineering and Auto Components

Machine-hour rates, scrap and rejection cost, tooling, yearly price-down demands, payment rules for micro and small suppliers and whether cost records apply to what you make.

4 leak points · rules guide · 3 servicesCheck your industry →

Tamil Nadu’s industry map

Eight clusters, each with its story, its key figures with sources, and the numbers businesses there need to get right. In English and தமிழ்.

All clusters →
Chennai: the Detroit of Asia: in preparationChennaiSriperumbudur: phones for the world: in preparationSriperumbudurChennai and Tenkasi: software for the world: in preparationTenkasiPalar beltKanchipuram: the silk saree: in preparationKanchipuramHosur: watches, mopeds and precision: in preparationHosurKrishnagiri: Tamil Nadu’s mango basket: in preparationKrishnagiriSalem: sago, steel and silk: in preparationSalemNamakkal and Tiruchengode: eggs, lorries and borewell rigs: in preparationNamakkalErode: turmeric and the cloth market: in preparationErodeTiruppurCoimbatoreCoimbatore: the Manchester of South India: in preparationKarur: home textiles for the world: in preparationKarurThe Nilgiris: tea on the blue mountains: in preparationNilgirisTiruchirappalli: India’s boiler capital: in preparationTrichyThanjavur and Swamimalai: art you can hold: in preparationThanjavurMadurai: buses, eye care and jasmine: in preparationMaduraiDindigul: the trick locks: in preparationDindigulSivakasiKovilpatti, Srivilliputhur, Palani: sweets the law protects: in preparationGI sweetsThoothukudi: the port of the Tamil who sailed ships: in preparationThoothukudiOur office

Tap a dot to open its story. Positions are approximate. Map outline: SVG Maps, CC BY 4.0

('Chennai · Ennore · Oragadam · Sriperumbudur', 'சென்னை · எண்ணூர் · ஒரகடம் · ஸ்ரீபெரும்புதூர்')Chennai: the Detroit of Asia30% of India’s automobile industry is based around Chennai('Sriperumbudur · Chennai belt', 'ஸ்ரீபெரும்புதூர் · சென்னைப் பகுதி')Sriperumbudur: phones for the world$14.65 bn electronics exports from Tamil Nadu, 2024-25('Chennai · Tenkasi', 'சென்னை · தென்காசி')Chennai and Tenkasi: software for the world1996 Zoho began in Chennai, as AdventNet('Ranipet · Vellore · Ambur · Vaniyambadi', 'ராணிப்பேட்டை · வேலூர் · ஆம்பூர் · வாணியம்பாடி')The Palar leather beltUS$ 4.75 bn India’s leather and footwear exports, 2025-26('Kanchipuram · Arani', 'காஞ்சிபுரம் · ஆரணி')Kanchipuram: the silk saree5,000 families weaving sarees (2008 estimate)('Hosur · Krishnagiri district', 'ஓசூர் · கிருஷ்ணகிரி மாவட்டம்')Hosur: watches, mopeds and precision1980 the TVS 50, India’s first two-seater moped, made in Hosur('Krishnagiri district', 'கிருஷ்ணகிரி மாவட்டம்')Krishnagiri: Tamil Nadu’s mango basket~25 factories turning mangoes into pulp and products('Salem', 'சேலம்')Salem: sago, steel and silk650+ units extracting sago from tapioca('Namakkal · Tiruchengode', 'நாமக்கல் · திருச்செங்கோடு')Namakkal and Tiruchengode: eggs, lorries and borewell rigs~65% of Tamil Nadu’s eggs('Erode · Bhavani · Chennimalai', 'ஈரோடு · பவானி · சென்னிமலை')Erode: turmeric and the cloth market2019 Erode turmeric got its GI tag('Tiruppur', 'திருப்பூர்')Tiruppur: India’s knitwear town₹40,000 cr record knitwear exports in 2024-25('Coimbatore', 'கோயம்புத்தூர்')Coimbatore: pumps, motors and the wet grinder40%+ of India’s motor and pump needs are met from Coimbatore('Coimbatore · Periyanaickenpalayam', 'கோயம்புத்தூர் · பெரியநாயக்கன்பாளையம்')Coimbatore: the Manchester of South India1911 Lakshmi Mills began spinning in Coimbatore('Karur', 'கரூர்')Karur: home textiles for the world1975 handloom exports began with 15 exporters('The Nilgiris · Coonoor · Kotagiri', 'நீலகிரி · குன்னூர் · கோத்தகிரி')The Nilgiris: tea on the blue mountains1835 the first tea was planted, at Ketti('Tiruchirappalli', 'திருச்சிராப்பள்ளி')Tiruchirappalli: India’s boiler capital1928 the Golden Rock railway workshop moved to Trichy('Thanjavur · Swamimalai', 'தஞ்சாவூர் · சுவாமிமலை')Thanjavur and Swamimalai: art you can hold2012-13 Thanjavur veenai got its GI('Madurai', 'மதுரை')Madurai: buses, eye care and jasmine11 beds: Aravind Eye Hospital’s start in 1976('Dindigul', 'திண்டுக்கல்')Dindigul: the trick locks2019 Dindigul locks got their GI tag('Sivakasi', 'சிவகாசி')Sivakasi: fireworks, matches and printing1923 the first match unit opened in Sivakasi('Kovilpatti · Srivilliputhur · Palani', 'கோவில்பட்டி · ஸ்ரீவில்லிபுத்தூர் · பழனி')Kovilpatti, Srivilliputhur, Palani: sweets the law protects2020 Kovilpatti kadalai mittai got its GI('Thoothukudi', 'தூத்துக்குடி')Thoothukudi: the port of the Tamil who sailed ships₹10 lakh capital, in 40,000 shares of ₹25 each

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