NHAI reverses cut in toll revision factor, boosting Roadstar Infra's revenue outlook
The regulator restored the WPI linking factor from 1.561 to 1.641, directly increasing the base for annual toll fee hikes across all of the trust's highway projects.
— 2 earlier stories on Roadstar Infra Investment Trust →What's new
- NHAI reversed its September 2025 cut, restoring the WPI linking factor to 1.641
- The change applies to all existing concession agreements, including Roadstar's SPVs
- Reversal follows a Ministry of Road Transport directive and CAG observations on uniformity
Why this matters
The restoration is a genuine positive surprise for the nano-cap trust, enhancing toll revenue visibility after a period of headwinds. Even modest regulatory tailwinds can be material given its small scale.
What we're watching
- Impact of upcoming toll revisions under the higher factor
- Any further regulatory changes in toll indexation
- Actual WPI inflation trends driving the percentage increase
The full read
Roadstar Infra Investment Trust just got a regulatory boost. NHAI reversed its earlier cut to the WPI linking factor, restoring it from 1.561 to 1.641 for all national highway concessions, including those covering the trust's special purpose vehicles. The September 2025 reduction had been a headwind; the new circular, effective immediately, lifts the base for annual toll revisions. The reversal follows an office memorandum from the Ministry of Road Transport and CAG observations. For a nano-cap that just posted a ₹3,220.82 m goodwill impairment, even modest and unquantified regulatory tailwinds are welcome. The trust's toll revenue growth now has a stronger indexing mechanism—though the actual benefit depends on future WPI data. What changes from here is the visibility: the policy risk from the earlier cut is gone.
Questions answered
- What exactly did NHAI reverse?
- In September 2025, NHAI cut the WPI linking factor from 1.641 to 1.561. Now it has restored the original 1.641 via a July 8, 2026 circular.
- How does this affect toll rates?
- The linking factor is a multiplier used to derive annual toll increases from WPI. A higher factor means larger permitted tariff hikes, directly benefiting revenue.
- Why did NHAI reverse its decision?
- The Ministry of Road Transport cited uniformity considerations and CAG observations, though the specific rationale is policy-driven.
- Is the revenue impact quantifiable?
- No exact figure is provided; it depends on actual WPI movements and the tolling mix. But the policy shift itself is unambiguously positive for cash-flow visibility.
- Given Roadstar's recent impairment, how significant is this?
- The impairment was a non-cash item, while toll revenue is recurring. The factor reversal improves the core business outlook, but the trust's weak fundamentals remain.
Roadstar Infra Investment Trust
Latest quarter · Mar 2026
Strength & growth
Story so far
All notes on ROADSTAR →- 10 Jul 2026 · 4:39 PM IST NHAI reverses cut in toll revision factor, boosting Roadstar Infra's revenue outlook
- today Roadstar settles NHAI dispute, gets ₹499 cr after nine-year arbitration
- 48d ago Roadstar posts net loss on ₹3,220.82 m goodwill impairment