NHAI's ₹6,000 crore highway InvIT opens March 11 — here's what you actually own, what it pays, and where the risks sit.
Team Sahi
Every time a vehicle rolls through the Nelamangala–Tumkur corridor in Karnataka, a slice of that toll payment flows into a pool.
Starting March 11, 2026, investors can buy into that pool for ₹99 a unit.
That's Raajmarg Infra Investment Trust (RIIT) — India's largest highway InvIT offering ever, backed by NHAI, raising ₹6,000 crore.
The structure is interesting. The government backing is real. And the risks are specific enough that they're worth understanding before you apply.
An Infrastructure Investment Trust (InvIT) works like a mutual fund, except it holds physical infrastructure assets instead of stocks. SEBI mandates that at least 90% of net distributable cash flow must be paid out to unitholders every six months.
The basic idea:
You get access to real assets generating cash flow, without needing crores to buy infrastructure yourself.
India's InvIT market currently manages roughly ₹5–6 lakh crore in assets and is projected to reach ₹21 lakh crore by 2030.
RIIT is only the 7th InvIT to go public since SEBI introduced this structure in 2014.
| Parameter | Detail |
|---|---|
| Sponsor | National Highways Authority of India (NHAI) |
| Model | Toll-Operate-Transfer (TOT) |
| Concession Period | 15 years (FY26–FY41) |
| IPO Size | ₹6,000 crore (60 crore units – fresh issue) |
| Price Band | ₹99–₹100 per unit |
| Minimum Investment | 150 units (~₹14,850–₹15,000) |
| Subscription Dates | March 11–13, 2026 |
| Listing Date | March 24, 2026 |
| Listing Exchange | NSE & BSE |
| Investor Categories | 75% QIB / 25% NII (No separate retail category) |
One important point: there is no dedicated retail category.
Individual investors must apply in the NII (Non-Institutional Investor) category. Minimum lot size: 150 units (~₹15,000 investment).
Also note: Grey market premium (GMP): ₹0.
The roads are already built.
Instead of collecting tolls gradually over decades, NHAI sells the 15-year toll rights to the InvIT, receives a lump sum, and uses that capital to build new highways.
Key numbers:
Total concession value: ₹9,500 crore
IPO proceeds: ₹6,000 crore
Debt funding: 40% of the asset value
Amount paid to NHAI: ₹5,850 crore
NHAI retained stake: 15%
As of June 2025, NHAI had roughly ₹2.8 lakh crore of debt.
The government plans to raise ₹30,000 crore in FY26 through TOT and InvIT monetisation to reduce that burden.
RIIT holds five toll highways across four states, totaling 260.12 km.
All assets are part of the Golden Quadrilateral freight network, one of India's busiest logistics corridors.
| Highway Stretch | State | Length | FY27 Revenue |
|---|---|---|---|
| Gorhar–Barwa Adda | Jharkhand | 80.52 km | ₹155.1 crore |
| Chilakaluripet–Vijayawada | Andhra Pradesh | 69.40 km | ₹225.7 crore |
| Chennai Bypass | Tamil Nadu | 32.60 km | ~₹150 crore (combined) |
| Chennai–Tada | Tamil Nadu | 33.00 km | Included above |
| Nelamangala–Tumakuru | Karnataka | 44.60 km | ~₹315 crore |
| Total | 4 states | 260.12 km | ₹925.8 crore |
Traffic data highlights asset quality:
Chilakaluripet–Vijayawada: ~37,725 vehicles/day
Gorhar–Barwa Adda: ~12,500 vehicles/day
FASTag penetration: ~98%
The Nelamangala–Tumkur stretch (NH-48) near Bengaluru is the busiest asset, contributing about 34% of FY27 toll revenue.
That concentration risk matters.
According to RIIT's valuation report filed with SEBI:
FY27 projected toll revenue: ₹925.8 crore
FY41 projected toll revenue: ₹2,738.7 crore
Revenue CAGR: 8.1%
FY27 EBITDA: ₹876.6 crore (~95% margin)
FY41 EBITDA: ₹2,442.1 crore (~89% margin)
That ~95% EBITDA margin is typical for the Toll-Operate-Transfer (TOT) model.
Why margins are so high:
Roads are already built
No construction costs
Minimal operating overhead
Revenue growth comes from two sources:
Traffic growth as the economy expands
Automatic toll increases
Toll rates increase annually based on:
3% fixed escalation + 40% WPI indexation
This means revenue rises even if traffic stays flat, due to inflation-linked price increases.
Each highway asset sits in a separate Special Purpose Vehicle (SPV).
These SPVs:
Collect toll revenue
Pay operating expenses
Send surplus cash to the trust
The InvIT must distribute at least 90% of net distributable cash flow every six months. Investment management is handled by RIIMPL, whose shareholders include:
SBI
HDFC Bank
ICICI Bank
Axis Bank
Punjab National Bank
NaBFID
Bajaj Finserv Ventures
IDBI Bank
IndusInd Bank
Yes Bank
For the first 30 months, NHAI guarantees minimum revenue.
If actual traffic is lower than projected, NHAI compensates the difference. After month 30, this protection disappears. From that point onward, traffic risk sits entirely with investors.
Projected returns:
Pre-tax: 10–12% annually
Post-tax: 7–9% depending on your tax bracket
Anchor investors committed ₹1,260 crore, including:
EPFO
SBI Life Insurance
These institutions typically target ~8%+ yield instruments, indicating that the InvIT fits their long-term income mandate.
For comparison:
| Investment | Typical Return |
|---|---|
| InvIT sector returns (FY25 average) | 12.2% |
| InvIT volatility | 10.2% |
| Equity volatility | 15.4% |
| Bank FD | ~6.5–7.5% |
RIIT's yield premium over FDs is the compensation for traffic risk.
Unlike power transmission InvITs (which have regulated tariffs), road InvIT revenue depends entirely on traffic volume.
Revenue could fall due to:
Economic slowdown
Higher fuel prices
New alternate highways
Logistics shifts
The NHAI guarantee only lasts 30 months.
The Nelamangala–Tumkur highway generates ~34% of projected revenue.
If that stretch experiences:
Construction disruptions
Traffic diversion
Freight slowdown
The entire InvIT's distribution could be affected.
The concession period is 15 years.
At the end of FY41:
All five highways return to NHAI
The InvIT receives no residual value
This means the asset gradually consumes itself over time. After five years, roughly one-third of the economic life is already gone.
InvITs behave similarly to yield instruments or bonds.
If interest rates rise:
Fixed deposits become more attractive
InvIT unit prices tend to fall
India's repo rate was 5.25% in February 2026.
If FD rates move toward 7–8%, RIIT's yield advantage narrows.
| Parameter | RIIT | IRB InvIT | Bharat Highways InvIT |
|---|---|---|---|
| Sponsor | NHAI (Government) | IRB Infrastructure | Gawar Construction |
| Model | TOT | BOT | HAM |
| Portfolio | 5 roads / 260 km | Multiple assets | 7 roads / ~497 km |
| IPO Year | 2026 | 2017 | 2024 |
| Yield | ~8–10% | ~9.5% | ~11.5% at IPO |
| Inflation Linkage | Yes | Partial | No |
| Sovereign Backing | Strong | None | None |
RIIT's lower yield reflects stronger sponsor backing and lower construction risk.
This InvIT may make sense if you:
Want semi-annual income above FD rates
Can hold for 7–10 years
Are comfortable with traffic-linked revenue
You may want to skip it if:
You need capital protection
Your investment horizon is under 5 years
You're expecting listing gains
This InvIT is part of a capital recycling strategy.
NHAI sells toll rights to investors, receives upfront capital, and uses that money to build new highways. Those new roads may later be added to the InvIT portfolio.
NHAI has already approved 1,500 km of additional roads for potential injection into RIIT over the next 3–5 years. If that happens, the portfolio and distributions could grow.
Raajmarg Infra InvIT gives investors access to India's highway toll income at ₹99 per unit.
Positives:
Government-backed sponsor
30-month income protection
Inflation-linked toll increases
Institutional anchor investors
But investors must remember:
Asset life (conditional) is limited to 15 years
Traffic risk begins after year three
One asset contributes 34% of revenue
This is a steady income instrument, not a high-growth compounder. Understand what it is — and what it isn't — before investing.
Disclaimer: This article is for educational purposes only and does not constitute investment advice. Investors should read the official RHP filed with SEBI before making investment decisions.