5329472026-09-292026-09-295329472026-09-295329472026-09-292026-09-29PartiesOfTheAgreementDomain15329472026-09-29PartiesOfTheAgreementDomain15329472026-09-292026-09-29PartiesOfTheAgreementDomain25329472026-09-29PartiesOfTheAgreementDomain2xbrli:pureIRB Infrastructure Developers LimitedIRBNewOthersProject Implementation / Management AgreementExecution of agreementListed Entityfalse2026-09-2910:35:00true2026-09-29Project Implementation / Management Agreements (“PIA”) with IRB InvIT Fund to act as the Project Manager2026-07-02trueNA2Solapur Yedeshi Tollway LimitedCounterparties to the agreementNilfalseCG Tollway LimitedCounterparties to the agreementNilfalse2026-09-28The Company is entering into the project implementation agreement 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.Approximately, Rs.2,663 crore on fixed price basis (inclusive of applicable taxes) over the balance concession period, which is approximately 18 years on weighted average life.falseNANot Applicable