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August 27, 2026 Corporate Relationship Department, Listing Department, BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers Exchange Plaza, C-1 Block G Dalal Street, Mumbai 400 001. Bandra Kurla Complex, Bandra (E), Mumbai 400 051 Dear Sir, Ref.: Scrip Code: 532947, Symbol: IRB Subject: Business Responsibility and Sustainability Report (“BRSR”) for the Financial Year 2025‐26 Pursuant to Regulation 34(2)(f) of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, please find enclosed herewith the BRSR for the financial Year 2025‐26, which forms part of the Integrated Annual Report for the Financial Year 2025‐26. The same shall be available on the website of the Company at www.irb.co.in We request you to take the above on record. Thanking you, Yours faithfully, For IRB Infrastructure Developers Limited Mehul Patel Company Secretary & Compliance Officer Encl.: As above IRB Infrastructure Developers Ltd. Integrated Annual Report 2025-26 BUSINESS RESPONSIBILITY & SUSTAINABILITY REPORT FY 2025-26 SECTION A: GENERAL DISCLOSURES I. Details of the listed entity 1. Corporate Identity Number (CIN) of the Listed Entity L65910MH1998PLC115967 2. Name of the Listed Entity IRB Infrastructure Developers Limited 3. Year of incorporation 1998 4. Registered office address 1101, Hiranandani Knowledge Park, 11th Floor, Technology Street, Hill Side Avenue, Opp. Hiranandani Hospital, Powai, Mumbai - 400 076 5. Corporate address 3rd Floor, IRB Complex, Chandivali Farm, Chandivali Village, Andheri (East), Mumbai - 400 072 6. E-mail info@irb.co.in 7. Telephone +022 6640 4220 8. Website www.irb.co.in 9. Financial year for which reporting is being done April 1, 2025 - March 31, 2026 10. Name of the Stock Exchange(s) where shares are listed 1.National Stock Exchange of India Limited (NSE) 2.BSE Limited (BSE) 11. Paid-up Capital ₹ 6,039 Mn 12. Name and contact details (telephone, email address) of Mr. Rishikesh Ahirrao, the person who may be contacted in case of any queries info@irb.co.in on the BRSR report +022 67336400 +022 40536400 13. Reporting boundary - Are the disclosures under this report The disclosures under this report are made on a made on a standalone basis (i.e. only for the entity) or on consolidated basis for IRB Infrastructure Developers a consolidated basis (i.e. for the entity and all the entities Limited, Hence Business Responsibility and Sustainability which form a part of its consolidated financial statements, (BRS) initiatives are extended to the Subsidiary Companies taken together). and its associates. 14 Whether the company has undertaken assessment or Yes assurance of the BRSR Core? 15. Name of assurance provider M/s. Carbon Check India Pvt. Ltd. 16. Type of assurance obtained ISAE 3000 II. Products/services 17. Details of business activities (accounting for 90% of the turnover): S.no. Description of Main Activity Description of Business Activity % of Turnover of the entity 1 Construction and Maintenance of Roads and Toll Construction and Maintenance of Roads 100% Operations* * The company is India’s leading Highway Infrastructure Developer and owns 28 long-term Highway Asset concessions through its three listed entities - IRB Infra & two InvITs. It Bids, Develops and Maintains these assets with in-house capabilities of providing Construction and O&M assistance (no third-party EPC work undertaken). 18. Products/Services sold by the entity (accounting for 90% of the entity’s Turnover) S.no. Product/service NIC Code % of total Turnover contributed 1 Construction and Maintenance of Roads and Toll 42101 100% Operations* * The company is India’s leading Highway Infrastructure Developer and owns 28 long-term Highway Asset concessions through its three listed entities - IRB Infra & two InvITs. It Bids, Develops and Maintains these assets with in-house capabilities of providing Construction and O&M assistance (no third-party EPC work undertaken). IRB Infrastructure Developers Ltd. Integrated Annual Report 2025-26 III. Operations 19. Number of locations where plants and/or operations/offices of the entity are situated: Location Number of plants Number of offices Total National 36 4 40 International 0 0 0 20. Markets served by the entity: a. Number of locations Locations Numbers National (No. of States) 13 International (No. of Countries) 0 b. What is the contribution of exports as a percentage of the total turnover of the entity? Not applicable. c. A brief on types of customers B eing an infrastructure and construction Company, our major clients include departments and ministries of State and Central Government, as well as toll road commuters. IV. Employees 21. Details at the end of Financial Year (2025-26) a. Employees and workers (including differently abled): S. Particulars Total (A) Male Female No. No. (B) % (B / A) No. (C) % (C / A) EMPLOYEES 1. Permanent (D) 1,305 1,256 96.25% 49 3.75% 2. Other than Permanent (E) 1,522 1,488 97.77% 34 2.23% 3. Total employees (D + E) 2,827 2,744 97.06% 83 2.94% WORKERS 4. Permanent (F) 1,658 1,617 97.53% 41 2.47% 5. Other than Permanent (G) 1,788 1,645 92.00% 143 8.00% 6. Total workers (F + G) 3,446 3,262 94.66% 184 5.34% b. Differently abled Employees and workers: S. Particulars Total (A) Male Female No No. (B) % (B / A) No. (C) % (C / A) DIFFERENTLY ABLED EMPLOYEES 1. Permanent (D) 2 2 100% 0 0.00% 2. Other than Permanent (E) 1 1 100% 0 0.00% 3. Total differently abled employees (D + E) 3 3 100% 0 0.00% DIFFERENTLY ABLED WORKERS 4. Permanent (F) 2 2 100% 0 0.00% 5. Other than permanent (G) 0 0 0.00% 0 0.00% 6. Total differently abled workers (F + G) 2 2 100% 0 0.00% 22. Participation/Inclusion/Representation of women Total No. and percentage of Females (A) No. (B) % (B / A) Board of Directors 8 2 25% Key Management Personnel 4 0 0% IRB Infrastructure Developers Ltd. Integrated Annual Report 2025-26 23. Turnover rate for permanent employees and workers Turnover rate in FY 2025-26 Turnover rate in FY 2024-25 Turnover rate in FY 2023-24 Male Female Total Male Female Total Male Female Total Permanent Employees 13.52% 13.73% 13.53% 5.71% 9.52% 5.86% 4.22% 19.61% 4.79% Permanent Workers 29.67% 10.13% 29.24% 16.06% 14.08% 16.02% 9.36% 8.00% 9.33% V. Holding, Subsidiary and Associate Companies (including joint ventures) 24. (a) Names of holding / subsidiary / associate companies / joint ventures S. Name of the holding / subsidiary / associate companies Indicate % of Does the entity No. / joint ventures (A) whether shares indicated at column holding / held by A, participate in the Subsidiary / listed Business Responsibility Associate / entity initiatives of the listed Joint Venture entity? (Yes/No) 1 Modern Road Makers Private Limited Subsidiary 100% Yes 2 IRB Ahmedabad Vadodara Super Express Tollway Private Limited Subsidiary 100% Yes 3 Mhaiskar Infrastructure Private Limited Subsidiary 100% Yes 4 Thane Ghodbunder Toll Road Private Limited Subsidiary 100% Yes 5 IRB Infra Industries Private Limited (Formerly known as IRB Subsidiary 100% Yes Kolhapur Integrated Road Development Company Private Limited) 6 ATR Infrastructure Private Limited Subsidiary 100% Yes 7 Ideal Road Builders Private Limited Subsidiary 100% Yes 8 Aryan Toll Road Private Limited Subsidiary 100% Yes 9 GE1 Expressway Private Limited Subsidiary 100% Yes 10 IRB PS Highway Private Limited Subsidiary 100% Yes 11 IRB Sindhudurg Airport Private Limited Subsidiary 100% Yes 12 IRB Infrastructure Private Limited Subsidiary 100% Yes 13 Aryan Infrastructure Investments Private Limited Subsidiary 100% Yes 14 Aryan Hospitality Private Limited Subsidiary 100% Yes 15 IRB MP Expressway Private Limited Subsidiary 100% Yes 16 IRB Goa Tollway Private Limited Subsidiary 100% Yes 17 MRM Mining Private Limited Subsidiary 100% Yes 18 VM7 Expressway Private Limited (up to November 30, 2025) Subsidiary - Yes 19 Pathankot Mandi Highway Private Limited Subsidiary 100% Yes 20 Chittoor Thachur Highway Private Limited Subsidiary 100% Yes 21 MMK [Showing first 8,000 characters — download PDF for full document]