Mohit Mehra

What Are InvITs — Infrastructure Investment Trusts Explained

← Writing  / REITs & InvITs

An InvIT owns a toll road, not an office building. That one sentence captures the essential difference from a REIT. The cash flowing to you as a unit-holder comes from vehicles paying tolls, or from a utility paying for power transmission, or from a gas company using a pipeline. It’s infrastructure, physical, essential, slow-moving, and the income structure reflects that.

India has had listed InvITs since 2017. The names you’ll encounter most often are IRB InvIT (toll roads), IndiGrid (power transmission lines), and PowerGrid InvIT (also power transmission, sponsored by PowerGrid Corporation of India). There are others, but these three give you a reasonable sense of the landscape.

Where the cash flow comes from

For a toll road InvIT like IRB, the income comes from vehicles paying tolls on specific highway stretches. These are usually under long-term concession agreements with NHAI (National Highways Authority of India), typically 20–30 years. The concession agreement specifies the toll rates, the revenue-sharing arrangement with the government, and what happens at the end of the concession period. After the concession expires, the road goes back to the government. The InvIT doesn’t own the road permanently.

For a power transmission InvIT like IndiGrid or PowerGrid InvIT, the income comes from transmission service charges, essentially fees that distribution companies pay for using the transmission network. These are set under long-term transmission service agreements (TSAs) approved by the regulator CERC. The tariffs are fixed for the duration of the TSA, which provides predictable cash flows but also means there’s limited upside if power demand grows faster than expected.

This is fundamentally different from a REIT. A REIT’s income can grow if rents rise at lease renewal. An InvIT’s income from a fixed-tariff transmission line is largely capped until the next tariff revision. The trade-off is that InvITs can be more predictable in the near term, but they offer less organic growth potential.

The structure underneath

Like REITs, InvITs hold assets through SPVs (special purpose vehicles). Each road or transmission line is typically held in a separate SPV. The InvIT trust holds the SPVs, and unit-holders own the trust. The trust has an investment manager and a project manager who handle the day-to-day operations.

SEBI regulates InvITs under its InvIT regulations. The trust must distribute at least 90% of net distributable cash flows to unit-holders at least once every six months (REITs distribute quarterly; InvIT distribution frequency can vary). Most listed InvITs have moved to quarterly distributions in practice.

Distribution yields and what to expect

InvITs have historically offered somewhat higher distribution yields than REITs, reflecting the additional complexity and regulatory risk. But yields fluctuate with unit prices and with the cash flows of the underlying assets. I won’t give you specific numbers here because they change, and I don’t want you to anchor on a figure that may already be out of date.

What I can say is that the yield should be evaluated net of tax, not gross. Like REITs, InvIT distributions have components, interest, dividends, return of capital, each taxed differently. The interest component (which is typically the largest) is taxed at your slab rate. If you’re in the 30% bracket, the after-tax yield looks materially lower than the headline number.

The risks, especially the ones specific to InvITs

Regulatory risk is the defining risk for InvITs. Toll rates, transmission tariffs, and concession terms are set by government bodies, NHAI, CERC, state regulators. These can be changed. Governments have historically been willing to revise tariffs downward for political reasons, particularly on toll roads. This is not hypothetical, there have been instances of toll collection being disrupted or concession terms being renegotiated. When that happens, the cash flows to the InvIT fall, and distributions get cut.

Concession expiry risk matters particularly for toll road InvITs. Unlike a building that can earn rent indefinitely, a toll road concession has a defined end date. As the concession gets closer to expiry, the InvIT needs to acquire new assets or the trust will eventually run out of cash-flow-generating assets. The quality of capital allocation decisions, what assets the management team buys at what price, becomes critical to whether long-term value is created or destroyed.

Traffic risk affects toll roads specifically. If traffic volumes on a highway are lower than projected, because a competing route opens, or because the economy slows, revenue falls. Historical traffic data and the competitive dynamics of each road stretch matter when evaluating a toll road InvIT.

For power transmission InvITs, the main operational risk is grid availability and forced outage. Tariffs are often tied to the availability of the transmission lines; if a line is unavailable for more than a threshold percentage of time, the InvIT gets paid less. Maintenance quality and capex discipline are therefore important.

Leverage risk applies to all InvITs. These are capital-intensive assets, and InvITs typically carry significant debt. When interest rates rise, their financing costs increase and distributions can get compressed. SEBI caps the leverage an InvIT can carry, but within those limits, management teams have discretion.

Why infrastructure as an asset class is interesting

I find infrastructure genuinely interesting as an investment theme, not as a short-term trade but as a long-duration bet on essential economic activity. Roads, power lines, and gas pipelines don’t go away. India needs more of all of them, not fewer. The question is whether a specific InvIT is acquiring the right assets at the right price and managing them competently.

At Rainmatter, where I spend time thinking about investment themes, infrastructure as a long-cycle economic driver is something that comes up often. Not because any single InvIT is a screaming buy at any given moment, but because the underlying economic need for infrastructure in a country at India’s stage of development is real and durable.

understanding the distinction between infrastructure as a theme and a specific InvIT as an investment is important. The theme can be right while a particular vehicle underperforms, because of bad asset acquisition, excessive leverage, or management missteps. Always read the distribution notices, the annual reports, and the concession details before committing capital.

How InvITs compare to REITs

I’ve written in detail about REITs separately at What Are REITs in India, and the full three-way comparison between REITs, InvITs, and direct real estate is at REIT vs InvIT vs Direct Real Estate. The short version: REITs and InvITs are both listed income instruments backed by real assets, but the underlying asset types and risk profiles are different. For most retail investors, REITs will be easier to understand because the concept of office rent is more intuitive than toll concession cash flows. InvITs reward investors who take the time to understand the specific assets and regulatory framework of each trust.

Practical considerations before investing

You buy InvIT units through your demat account, exactly like stocks. They trade on NSE and BSE. The minimum investment is one unit, so the entry point is the current unit price, typically a few hundred rupees for most listed InvITs.

Track distributions on a per-unit basis over time to see if they’re growing, stable, or declining. That trend tells you more than the current yield number. Also look at how management has deployed capital, if the InvIT has been acquiring new assets, what were those assets, and at what valuations? SEBI requires disclosure of related-party transactions, so read those sections carefully.

InvITs are not for everyone. They require more research than a Nifty ETF and more comfort with regulatory complexity. For a straightforward income allocation, a REIT may be simpler. But if you want infrastructure exposure specifically, and you’re willing to do the reading, an InvIT can be a reasonable part of a diversified portfolio.

Practical takeaway: Before investing in any InvIT, download its latest distribution notice and check the per-unit distribution trend over the last 8 quarters. If distributions are falling, understand why before you buy the current yield as a fixed expectation.

This post is for educational purposes only. It is not financial advice. Mohit Mehra is not a SEBI registered investment advisor. Please consult a qualified financial advisor before making investment decisions.