Polyhouse Farming Success Story: Infosys Engineer Built a Profitable Farm in Tamil Nadu

Arul Shankar had everything that should have kept him abroad. A software engineering role at Infosys. Four years working out of Ireland. A salary in euros and a career that most people spend years building.

He walked away from it — not into uncertainty, but into a plan.

He came back to his village in Erode, Tamil Nadu, and built a polyhouse farm — and this polyhouse farming success story proves what happens when an IT professional turned farmer does it scientifically, not sentimentally. Not a traditional farm where the monsoon decides your income for the year. A data-backed, business-first polyhouse — where the environment is controlled, the crop schedule is deliberate, and the return on investment is something you can actually calculate in advance.

That was 2 years ago. Today, his polyhouse runs without a single material failure or service complaint. He is at the farm every morning and every evening. Not as a hobby. As a professional who chose agriculture over corporate life — and made it work.

His story matters for agripreneurs and farmers across India. Whether you farm in Punjab, Maharashtra, Karnataka, Rajasthan, or Tamil Nadu, the question is the same: is polyhouse farming worth the investment, and what does it actually take to get it right?

Why Polyhouse — Not Open-Field Farming

When Arul came back to India, one decision was already made. He was not going to farm the way most farmers around him did. That was not stubbornness. It was a business calculation.

Open-field farming across India — in Erode, Nashik, Ludhiana, or Guntur — runs on weather windows and mandi prices. In a good year, you get two or three viable growing seasons. In a bad year, a weak monsoon, a heat spike, or a pest outbreak wipes out months of fixed investment. Costs do not change. Income does.

Polyhouse farming is a different equation. Here is what drew Arul to it — and what draws farmers from across India to protected cultivation today:

• Year-round production — You grow on your schedule, not the weather's. Market demand, not the monsoon, sets your crop calendar.
• Controlled environment — Temperature, humidity, and pest pressure are managed inside the structure. What destroys an open-field crop in peak summer often does not reach a well-maintained polyhouse crop.
• Higher, consistent yields — Agriplast's data from hundreds of farmers across India shows polyhouse capsicum yields 45–50 tonnes per acre in favourable conditions, with gross revenues of ₹20–30 lakhs per annum. Fruits have thicker walls and a shelf life of 15–20 days — what premium buyers and exporters require (Agriplast Capsicum Farming Guide).
• Significant water savings — Research from IIT Kharagpur found drip-irrigated capsicum in a polyhouse requires 35% less water than open-field cultivation. In water-stressed farming zones across India, that is a material advantage.
• Automation and systems — Drip irrigation, fertigation, and climate monitoring are systems you build and refine. Over time, they reduce dependency on daily manual labour and improve consistency.

This shift is happening across the country. Polyhouse farming in Tamil Nadu alone has expanded significantly over the last decade, and the national numbers confirm it. Since 2014–15, India's MIDH scheme has brought an additional 15.66 lakh hectares under horticulture crops and facilitated protected cultivation across 2.51 lakh hectares with a government investment of ₹2,963.91 crore (MIDH Guidelines 2025, NHB). 

Polyhouse vs Traditional Farming: The Honest Numbers

Here is the side-by-side comparison most farmers and agripreneurs are really looking for — with verified figures, not general claims.

On crop cycles: The "3–4 cycles per year" figure is crop-specific. Capsicum runs 8–9 months per cycle — you get 1 to 1.5 cycles annually, not 3 or 4. Cucumber, with a 60–70 day cycle, gives 2–3 rounds per year on soil beds. Plan your finances around the crop you actually intend to grow, not a generalised figure.

For a detailed capsicum farming guide, explore our Capsicum Guide).

On subsidy: The NHB central subsidy is 50% of the government cost norm (₹1,000 per sq.m for NVPH). Actual construction costs in 2026 often run higher than the norm. Your effective saving on actual spend is closer to 35–40%, because the subsidy is calculated on the norm — not your real invoice. It is also back-ended and credit-linked: you build first with a bank loan, then the subsidy is credited to your loan account after government inspection (MIDH Guidelines 2025, NHB).

What the Agriplast Team Did on Site 

Once the work order came through and construction began, the Agriplast team arrived at Arul's farm in Erode for a site inspection. What followed was not just a materials delivery — it was hands-on technical advisory.

"The people from the company arrived and they also inspected the area and what we are going to do. They also actually gave me a good advice on how the fertigation can be automated and also the devices that they use in their own plants for automation of fertigation."

— Arul Shankar, Erode district, Tamil Nadu

The Agriplast team shared practical guidance on automating fertigation — combining irrigation and nutrient delivery into a single drip system. They showed Arul the devices used in their own demonstration farms. They also made multiple follow-up visits during the setup phase. That continuity of field support gave Arul the confidence to get the operation running correctly from the start.

Fertigation automation is not optional for a first-time operator with no farm staff. It is what makes the operation manageable. Here is what it delivers in practice:

• Nutrients reach plant roots at the right time, at the right concentration — no guesswork
• Water savings of 35% compared to open-field irrigation for the same crop (IIT Kharagpur, IJERR 2024)
• Labour requirement drops significantly — one person can manage what would need multiple workers manually
• Consistent crop nutrition means uniform growth and fewer quality rejections at harvest

For a deeper look at how drip fertigation works in a polyhouse context, see Agriplast's guides on capsicum fertigation management and mulch film with drip irrigation — the two are typically deployed together for maximum water efficiency and root-zone control.

A drip irrigation and fertigation system inside Arul's polyhouse in Erode — nutrients and water delivered together through drip lines, reducing labour and saving up to 35% water versus open-field irrigation.

The Greenhouse Film: What Arul Said About Material Quality

Eighteen months into farming, Arul's feedback on the Agriplast materials is direct:

"I've been continuously doing it in this particular field for the last one year and it's been great. I had no problems with the service or anything like that and the materials that they used were of certain quality that I don't have any issues coming up every now and then."

— Arul Shankar, Erode district, Tamil Nadu

That phrase — "materials of certain quality" — is the one most first-time polyhouse farmers underestimate before they build. Greenhouse film quality in India varies enormously by manufacturer, UV grade, and micron specification. The structure is only as reliable as what covers it, and in South India's high-UV, high-heat climate, the film faces severe conditions every single day.

A film that cannot handle it starts breaking down — losing UV stabilisation, developing micro-tears, transmitting heat instead of filtering it. The crop environment drifts. Yield drops. And early film failure means replacement costs at the worst possible time — when the farm should be earning returns, not absorbing overheads.

Agriplast's Ginegar greenhouse films use 5-layer co-extrusion technology with UV stabilisation, anti-drip, anti-dust, and infrared control layers — designed to maintain performance across Indian climatic conditions. The Ginegar Driplock Diffused film, for example, offers 87% light transmission and 62% light diffusion, which reduces hot spots inside the polyhouse and improves yield uniformity for crops like capsicum and cucumber (Agriplast Greenhouse Films).

When evaluating greenhouse film for your polyhouse, check these specifically:

• UV stabilisation grade — Must match your region's radiation levels. Do not choose by price per metre alone.
• Micron thickness — 200 microns is the standard for Indian polyhouse conditions. Do not go below the minimum recommended for your structure type.
• Light diffusion — Diffused films spread light evenly across the canopy, reducing hot spots that cause uneven growth.
• Anti-drip layer — Prevents condensation from dripping onto crops, which reduces fungal disease pressure.

For a full technical breakdown of greenhouse film types, see the Agriplast Greenhouse Film Complete Guide.

For the specific choice between clear and diffused film — which directly affects light distribution and yield consistency inside your polyhouse — the Clear vs Diffused Film comparison covers it in detail.

For the science behind UV protection in harsh Indian climates, read the UV Plastic Sheet for Greenhouse guide.

Why Daily Presence Is Non-Negotiable

Arul closes his video with a line that is easy to underestimate:

"It's been going good and there is no issues or whatsoever in the field and I'll be here on a daily basis from morning to evening."

That is not just commitment. It is a farming requirement. A polyhouse does not manage itself. Specific things happen daily that require a decision-maker to be present:

• Temperature monitoring — An unventilated polyhouse in peak summer can reach 45–50°C inside within hours. Vents must be opened, shade adjusted, and cooling checked every day.
• Pest and disease watch — A small tear in insect netting is all it takes for thrips or whitefly to establish. Caught on day one it is a management task. Caught on day five it is a crisis.
• Drip system checks — A blocked emitter means one section of the bed gets no water or nutrients. Uneven growth across beds affects marketable yield quality for the entire harvest.
• Fertigation timing — Plants have nutritional windows within their growth cycle. Missing a scheduled fertigation round is not neutral — it pushes back fruit set for that cycle.

This is why polyhouse farming rewards the same discipline that makes professionals successful in other fields. And why it does not work as an absentee investment.

Also worth reading: How Girish from Tumkur, Karnataka earns ₹25 lakh per acre from chrysanthemum — different crop, same discipline, same commitment to doing it right from the start.

Could You Do What Arul Did? The Honest Assessment

Arul is part of a growing group across India — engineers, MBAs, returning NRIs, progressive farmers — who are building polyhouse farming as a business in India, treating it as a first-choice career, not a fallback. Polyhouse farming fits this group because it rewards planning, systems thinking, and consistent execution. It does not reward guesswork or cutting corners at setup.

Here is the honest picture:

• Setup cost is real — The NHB government cost norm for a naturally ventilated polyhouse is ₹1,000 per sq.m. Actual construction in 2026 often runs higher (NHB). Budget for the real figure, not the norm.
• Subsidy helps, but understand how it works — 50% of the NHB cost norm. Back-ended, credit-linked. Your effective saving on actual spend is closer to 35–40%. Read the full process before planning (MIDH Guidelines 2025).
• Crop selection determines your business model — Capsicum gives 1–1.5 cycles per year with high per-kg value. Cucumber gives 2–3 cycles with faster cash flow. Each requires a different management approach. Read the crop guides before deciding.
• ICAR-supported research confirms the economics work — Polyhouse capsicum cultivation shows a Benefit-Cost Ratio of 1.80, an IRR of 53.7%, and payback under two years — with proper management (Journal of Horticultural Sciences, IIHR).
• Daily presence on the farm is not optional — Temperature, pests, drip blockages, and fertigation timing all require daily decisions. This is not a side project.
• Get the foundation right before you build — Water quality tested, greenhouse film verified, fertigation system designed, reliable technical support confirmed. These pre-construction decisions determine nearly everything that follows.

If those conditions match your situation and commitment level, polyhouse farming is one of the most defensible agricultural businesses you can build anywhere in India. The weather stops making your income decisions for you.

Agriplast works with polyhouse farmers across India — Tamil Nadu, Karnataka, Maharashtra, Rajasthan, Haryana, Uttar Pradesh, and beyond. With 1,000+ dealers pan-India and presence in 15+ countries, Agriplast's greenhouse films, insect nets, and fertigation accessories are available wherever you farm (Agriplast Tech India). 

Watch Arul Tell His Story Himself

Arul covers the complete journey in this Agriplast field visit — why he left Infosys, how he set up his polyhouse in Erode, what the Agriplast team did on site, and what 1.5 years of continuous farming has actually looked like on the ground.

Frequently Asked Questions

Thinking of Making the Same Move?

Arul walked away from a stable corporate career abroad and built a farm that runs without failures, without shortcuts, on his own terms. He did it by treating farming the way he treated work — with preparation, the right tools, and showing up every day.

If you are evaluating polyhouse farming — whether you are a returning professional, an existing farmer looking to upgrade, or an agripreneur running the numbers — start where Arul started. Test your water. Verify your materials. Get the right support before you build.

Ready to build it the right way from day one?

Talk to the Agriplast team and get expert guidance tailored to your land, crop, and goals—before you invest a single rupee.

Agriplast Tech India Private Limited (APTIPL) manufactures greenhouse films, mulching films, shade nets, insect nets, and other protected cultivation products for farmers across India and 15+ countries. APTIPL is a separate entity from Agriplast Protected Cultivation (APPC).