Oriental Infra Trust updates on NHAI circular regarding WPI linking factor
Oriental Infra Trust announced that the NHAI has reinstated the WPI linking factor of 1.641 for toll rate revisions via a circular dated July 8, 2026. This decision supersedes the previous circular from September 2025 and aligns with a Ministry of Road Transport & Highways Office Memorandum from June 29, 2026. The factor will apply to all existing and future national highway projects until further amendments to the NH Fee Rules.

*this image is generated using AI for illustrative purposes only.
Oriental Infra Trust has updated the National Stock Exchange of India regarding the National Highways Authority of India's (NHAI) decision to reinstate the Wholesale Price Index (WPI) linking factor of 1.641 for toll rate revisions. The NHAI issued a new circular on July 8, 2026, superseding its earlier directive that had revised the factor to 1.561. This development ensures that the linking factor to connect the WPI series of 2004-05 to 2011-12 will remain at 1.641 for all existing contract and concession agreements, including those of the Trust's SPVs, as well as future national highway projects.
The disclosure references previous intimations made by the Trust on October 1, 2025, and October 24, 2025. The earlier intimation dated October 1, 2025, had informed the exchange about the NHAI circular dated September 13, 2025, which revised the linking factor from 1.641 to 1.561. Subsequently, on October 24, 2025, the Trust reported that the Hon'ble High Court of Delhi had directed the September 13 circular to be kept in abeyance.
The latest circular from NHAI confirms that the linking factor of 1.641 shall continue to be followed for the revision of user fees (toll). This directive is based on an Office Memorandum from the Ministry of Road Transport & Highways (MoRTH) dated June 29, 2026. The MoRTH memorandum decided to adopt the 1.641 factor to link the WPI series of 2004-05 to 2011-12 for the purpose of user fee revision in all existing contracts.
The policy circular issued by NHAI explicitly supersedes the earlier circular dated September 13, 2025. The new guidelines will remain in effect until further orders or amendments are issued to the National Highways Fee (Determination of Rates & Collection) Rules, 2008. A copy of the NHAI Policy Circular dated July 08, 2026, has been attached to the filing.
| Circular Date | Issuing Authority | WPI Linking Factor | Status |
|---|---|---|---|
| September 13, 2025 | NHAI | 1.561 | Superseded |
| July 8, 2026 | NHAI | 1.641 | Active |
The information regarding this update has been uploaded on the Trust's website. The filing was submitted by Gaurav Puri, Compliance Officer of OIT Infrastructure Management Limited, acting in the capacity of Investment Manager to Oriental InfraTrust.
Historical Stock Returns for Oriental Infra Trust
| 1 Day | 5 Days | 1 Month | 6 Months | 1 Year | 5 Years |
|---|---|---|---|---|---|
| 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
How will the reinstated WPI linking factor of 1.641 impact the toll revenue projections for Oriental Infra Trust in the upcoming fiscal year?
What is the expected market reaction to this policy reversal, and will it influence investor sentiment towards other infrastructure trusts?
Could this decision set a precedent for future disputes between concessionaires and the NHAI regarding toll rate revisions?































