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<!--ANNAgreement V1.0 (10-04-2026)-->
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id="pure"><xbrli:measure>xbrli:pure</xbrli:measure></xbrli:unit><in-capmkt:NameOfTheCompany contextRef="MainI">IRB Infrastructure Developers Limited</in-capmkt:NameOfTheCompany><in-capmkt:NSESymbol contextRef="MainI">IRB</in-capmkt:NSESymbol><in-capmkt:TypeOfAnnouncement contextRef="MainI">New</in-capmkt:TypeOfAnnouncement><in-capmkt:TypeOfAgreement contextRef="MainI">Others</in-capmkt:TypeOfAgreement><in-capmkt:DetailsOfOtherTypeOfAnnouncement contextRef="MainI">Project Implementation Agreement</in-capmkt:DetailsOfOtherTypeOfAnnouncement><in-capmkt:StageOfAgreement contextRef="MainI">Execution of agreement</in-capmkt:StageOfAgreement><in-capmkt:AgreementsEnteredIntoBy contextRef="MainD">Listed Entity</in-capmkt:AgreementsEnteredIntoBy><in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfBoardMeeting contextRef="MainD">true</in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfBoardMeeting><in-capmkt:DateOfOccurrenceOfEvent contextRef="MainI">2026-07-02</in-capmkt:DateOfOccurrenceOfEvent><in-capmkt:TimeOfOccurrenceOfEvent contextRef="MainD">14:50:00</in-capmkt:TimeOfOccurrenceOfEvent><in-capmkt:WhetherTheListedEntityIsPartyToTheAgreement contextRef="MainD">true</in-capmkt:WhetherTheListedEntityIsPartyToTheAgreement><in-capmkt:DateOfReport contextRef="MainI">2026-07-02</in-capmkt:DateOfReport><in-capmkt:DetailsOfExecutionOfAgreement contextRef="MainI">Project Implementation Agreements (“PIA”) with IRB InvIT Fund to act as the Project Manager</in-capmkt:DetailsOfExecutionOfAgreement><in-capmkt:DateOfBoardOrCommitteeMeetingApprovingTheAgreement contextRef="MainI">2026-07-02</in-capmkt:DateOfBoardOrCommitteeMeetingApprovingTheAgreement><in-capmkt:WhetherProposedOrExecutedAgreementIsInNormalCourseOfBusiness contextRef="MainI">true</in-capmkt:WhetherProposedOrExecutedAgreementIsInNormalCourseOfBusiness><in-capmkt:ImpactOfAgreementOnManagementAndControlOfTheListedEntity contextRef="MainI">NA</in-capmkt:ImpactOfAgreementOnManagementAndControlOfTheListedEntity><in-capmkt:NumberOfPartiesToTheAgreement contextRef="MainI" unitRef="pure" decimals="0">2</in-capmkt:NumberOfPartiesToTheAgreement><in-capmkt:NameOfPartiesOrCounterPartiesOfTheAgreement contextRef="D_PartiesOfTheAgreement1">Solapur Yedeshi Tollway Limited</in-capmkt:NameOfPartiesOrCounterPartiesOfTheAgreement><in-capmkt:NatureOfThePartiesOfTheAgreement contextRef="I_PartiesOfTheAgreement1">Counterparties to the agreement</in-capmkt:NatureOfThePartiesOfTheAgreement><in-capmkt:DetailsOfShareholdingInTheEntityWithWhomTheAgreementIsExecuted contextRef="I_PartiesOfTheAgreement1">Nil</in-capmkt:DetailsOfShareholdingInTheEntityWithWhomTheAgreementIsExecuted><in-capmkt:WhetherThePartiesToTheAgreementAreRelatedToPromoterOrPromoterGroupOrAssociateOrHoldingOrSubsidiaryOrGroupCompaniesOrDirectorOrKMPAndItsRelativesInAnyManner contextRef="I_PartiesOfTheAgreement1">false</in-capmkt:WhetherThePartiesToTheAgreementAreRelatedToPromoterOrPromoterGroupOrAssociateOrHoldingOrSubsidiaryOrGroupCompaniesOrDirectorOrKMPAndItsRelativesInAnyManner><in-capmkt:NameOfPartiesOrCounterPartiesOfTheAgreement contextRef="D_PartiesOfTheAgreement2">CG Tollway Limited</in-capmkt:NameOfPartiesOrCounterPartiesOfTheAgreement><in-capmkt:NatureOfThePartiesOfTheAgreement contextRef="I_PartiesOfTheAgreement2">Counterparties to the agreement</in-capmkt:NatureOfThePartiesOfTheAgreement><in-capmkt:DetailsOfShareholdingInTheEntityWithWhomTheAgreementIsExecuted contextRef="I_PartiesOfTheAgreement2">Nil</in-capmkt:DetailsOfShareholdingInTheEntityWithWhomTheAgreementIsExecuted><in-capmkt:WhetherThePartiesToTheAgreementAreRelatedToPromoterOrPromoterGroupOrAssociateOrHoldingOrSubsidiaryOrGroupCompaniesOrDirectorOrKMPAndItsRelativesInAnyManner contextRef="I_PartiesOfTheAgreement2">false</in-capmkt:WhetherThePartiesToTheAgreementAreRelatedToPromoterOrPromoterGroupOrAssociateOrHoldingOrSubsidiaryOrGroupCompaniesOrDirectorOrKMPAndItsRelativesInAnyManner><in-capmkt:DateOnWhichAgreementWasEntered contextRef="MainI">2026-07-02</in-capmkt:DateOnWhichAgreementWasEntered><in-capmkt:PurposeOfEnteringIntoTheAgreement contextRef="MainI">The Company is proposing to enter into the project implementation agreement (“PIA”) for:
1. SYTL: Four Laning of Solapur to Yedeshi section of NH-211 from km 0.000 to km 100.000 (Design Length 98.717 km) in the State of Maharashtra under NHDP Phase IV on Design, Build, Finance, Operate and Transfer (DBFOT) Toll basis.
2. CGTL: Six Laning of Kishangarh Udaipur Ahmedabad Section from km 90.000 (near Gulabpura) to km 214.870 (end of Chittorgarh Bypass) of NH-79 in the State of Rajasthan Package-2 under NHDP Phase – V on BOT (Toll) mode.</in-capmkt:PurposeOfEnteringIntoTheAgreement><in-capmkt:SignificantTermsOfTheAgreementInBriefSpecialRightsLikeRightToAppointDirectorsOrFirstRightToShareSubscriptionInCaseOfIssuanceOfSharesOrRightToRestrictAnyChangeInCapitalStructure contextRef="MainI">Approximately, Rs.2,663 crore on fixed price basis (inclusive of applicable taxes i.e. GST@ 18%) over the balance concession period which is approx. 18 years on weighted average life</in-capmkt:SignificantTermsOfTheAgreementInBriefSpecialRightsLikeRightToAppointDirectorsOrFirstRightToShareSubscriptionInCaseOfIssuanceOfSharesOrRightToRestrictAnyChangeInCapitalStructure><in-capmkt:WhetherThereIsAnyIssuanceOrTransferOfSharesToTheParties contextRef="MainI">false</in-capmkt:WhetherThereIsAnyIssuanceOrTransferOfSharesToTheParties><in-capmkt:DetailsAndQuantificationOfTheRestrictionOrLiabilityImposedUponTheListedEntity contextRef="MainD">NA</in-capmkt:DetailsAndQuantificationOfTheRestrictionOrLiabilityImposedUponTheListedEntity></xbrli:xbrl>
