This is not an anti-airport argument. It is an opportunity cost argument. At ₹43,000 crore, Parandur would be among the most expensive public infrastructure projects in Tamil Nadu's history. The question: is this the best use of that money?
The airport alone was estimated at ₹27,400 crore (2022 estimate, later revised to ₹32,705 crore). But an airport 70 km from the city does not work without connectivity. The metro extension from Chennai to Parandur was estimated at roughly ₹11,000 crore. That brings the total to ~₹43,000 crore — and that is before interest, cost overruns, land acquisition escalation, and resettlement costs.
| Component | Cost (₹ crore) |
|---|---|
| Airport — 4 phases | 27,400 – 32,705 |
| Metro connectivity (Chennai–Parandur) | ~11,000 |
| Land acquisition (5,746 acres at avg ₹62 lakh/acre) | ~3,500 |
| Resettlement and rehabilitation | Unestimated |
| Total | ~₹43,000+ crore |
With the same money, Tamil Nadu could:
This is not a rhetorical exercise. These are real trade-offs. Tamil Nadu's total government debt stood at ₹2.47 lakh crore at the end of FY25-26. A ₹43,000 crore project represents 17% of the state's total debt — on a single infrastructure asset, at a site with fundamental questions about its viability.
By November 2025, TIDCO had acquired 1,100 acres across 17 villages and disbursed ₹680 crore in compensation. At an average of ₹62 lakh per acre, the full land acquisition for 5,746 acres would cost roughly ₹3,500 crore — before resettlement costs.
And this was land that was actively being used: agricultural wetlands (47% of the site), dry agricultural land (17%), and commons including water bodies (35%). Acquiring it does not just cost money — it destroys the economic base of the farmers who depend on it.
The most honest framing of the Parandur cost is not "₹43,000 crore for an airport." It is "₹43,000 crore for a site that is one-quarter water, 70 km from the city, displacing 13,000 people, while the existing airport has room to grow at a fraction of the cost."
The pro-Parandur argument often frames opposition as "anti-development." But questioning whether ₹43,000 crore is well spent on a geotechnically questionable site is not anti-development. It is a demand for responsible fiscal stewardship.
A state with ₹2.47 lakh crore in debt cannot afford vanity projects. Every crore spent on the wrong site is a crore not spent on schools, hospitals, water infrastructure, or the existing airport's expansion — all of which would deliver more certain returns.