Mindspace Business Parks REIT has informed the Exchange regarding Disclosure of material issue

October 19, 2026 The Listing Department The Listing Department The National Stock Exchange of India Limited BSE Limited Exchange Plaza, Plot No. C/1, G - Block, Phiroze Jeejeebhoy Towers, Bandra Kurla Complex, Dalal Street, Bandra (E), Mumbai - 400051 Mumbai - 400001 Scrip Symbol: “MINDSPACE” (Units) Scrip Code “543217” (Units), Scrip Codes “974075”, “975068”, “975537”, “975654”, “975763”, “976198”, “976691”, “977043” “977120”, “977297”, “977350”, “977614” “977771”, “978031” and “978082” (Non- Convertible Debentures) and Scrip Codes “731549” and “731985” (Commercial Papers) Subject: Mindspace Business Parks REIT named GRESB 2026 Sector Leader across Development and Standing Investments, with a perfect score of 100/100 in the Development Benchmark Dear Sir/Madam, We wish to inform you that Mindspace Business Parks REIT ("Mindspace REIT"), owner and developer of quality Grade A office portfolio located in four key office markets of India, has been named GRESB 2026 Sector Leader across both the Development and Standing Investments benchmarks. In the 2026 GRESB Development Benchmark, Mindspace REIT achieved a perfect score of 100 out of 100 with a 5-Star rating. In the Standing Investments benchmark, it achieved a score of 94.2 out of 100 with a 5- Star rating. The copy of the Press Release issued in this regard is enclosed herewith. The above information shall also be made available on Mindspace REIT’s website at: https://www.mindspacereit.com/investor-relations/stock-exchange-filings Please take the same on your record. Thanking you. Yours faithfully, For and on behalf of K Raheja Corp Investment Managers Private Limited (acting as the Manager to Mindspace Business Parks REIT) Mridul Gupta Compliance Officer and Company Secretary Enclosure.: aa K Raheja Corp Investment Managers Private Limited (acting as the Manager to Mindspace Business Parks REIT) Corporate Identification Number (CIN): U68200MH2023PTC406104 Regd. Office: Raheja Tower, C-30, Block ‘G’, Bandra Kurla Complex, Bandra (E), Mumbai – 400 051 +91 - 22 - 2656 4000 | www.mindspacereit.com | reitcompliance@mindspacereit.com Mindspace REIT Named GRESB 2026 Sector Leader Across Development and Standing Investments ~ Achieves a perfect score of 100/100 in the Development Benchmark with 5-Star rating ~ Sector Leader titles across Development and Standing Investments Mumbai, October 19, 2026: Mindspace Business Parks REIT (BSE: 543217 | NSE: MINDSPACE) ('Mindspace REIT'), owner and developer of quality Grade A office portfolio, has once again been recognised as a GRESB Sector Leader across both the Development and Standing Investments benchmarks. This recognition is based on the GRESB Score and identifies the highest-scoring entities within each sector, region and nature of ownership. In the 2026 GRESB Development Benchmark, the REIT achieved a perfect score of 100 out of 100, securing the no. 1 position across the Office/Asia, Office/Listed and Asia/Listed categories, and was named Global Sector Leader, Global Sector Leader – Listed and Regional Sector Leader. The REIT also ranked 1st within its predefined peer group of 12 entities in India and secured a 5- Star GRESB rating. Mindspace REIT's Development score reflects full points across the assessed management and development practices, including ESG governance, policies, risk management, stakeholder processes and sustainability measures applied to development activities. The REIT has been recognised as a Global Sector Leader in the Development Benchmark for four consecutive years, while maintaining near-perfect development scores over this period and improving from 99.5 in 2023 to 100 in 2026. In the Standing Investments benchmark, Mindspace REIT achieved a score of 94.2 out of 100, securing a 5-Star rating and the Regional Sector Leader – Listed and Global Sector Leader – Listed titles. The recognition marks an improvement from Regional Sector Leader in the previous year to Global Sector Leader in 2026. The score also improved from 93.0 in 2025 and has risen from 91.2 in 2023, reflecting continued progress in the assessment of its operational portfolio. Key Highlights: • Perfect Development score of 100/100, with a 5-Star GRESB rating. • Three Development Sector Leader titles: Global Sector Leader, Global Sector Leader – Listed and Regional Sector Leader. • Ranked #1 across Office/Asia (1 of 16), Office/Listed (1 of 13) and Asia/Listed (1 of 38). • Ranked #1 among 12 entities in the India Office peer group. • Standing Investments recognised as Global Sector Leader – Listed and Regional Sector Leader – Listed, advancing from Regional Sector Leader to Global Sector Leader in 2026, with a score of 94.2/100 and a 5-Star rating, up from 93.0 in 2025. • Perfect Management Score of 30/30 in both Development and Standing Investments. • 99.9% of the portfolio covered by green-building certifications, including Standing Investments and Development projects. • 91% of the completed portfolio is Green Building certified with Platinum rating. • 50.4% renewable energy share in the total operational energy mix in FY2026. • 100% diversion of construction waste from landfill. • Science Based Targets initiative (SBTi) validation of Mindspace REIT's emissions-reduction targets under its buildings-sector criteria during FY2026. Mr. Ramesh Nair, CEO & MD, Mindspace REIT, said, “The real test of sustainability is how effectively it translates into the way buildings are designed, developed and operated. These recognitions, reflects the consistency of our sustainability approach across our portfolio. At Mindspace REIT, we are working across these stages to reduce the environmental impact of our portfolio, from assessing embodied carbon in new developments to improving operational energy performance. Our focus on resource efficiency, responsible development and science-based climate targets is central to building a portfolio that remains resilient as environmental expectations and business needs evolve.” The results follow the integration of sustainability practices across Mindspace REIT's development and operational portfolio. During FY2026, all new acquisitions were assessed through Environmental and Social Due Diligence, with the process also applicable to upcoming acquisitions. All new development projects are subject to embodied carbon assessments through project-level life-cycle assessments, while sustainable design measures include on-site renewable-energy systems. The REIT's operational sustainability initiatives include assessing all LEED Operations and Maintenance-certified buildings through Arc Energy Performance Scores. Its emissions-reduction targets were validated by SBTi under its buildings-sector criteria during FY2026, supporting a science-based approach to decarbonisation. About Mindspace Business Parks REIT Mindspace Business Parks REIT (SEBI Reg: IN/REIT/19-20/0003), sponsored by K Raheja Corp group, listed on the Indian bourses in August 2020. The REIT owns quality office assets located in four key office markets of India, namely Mumbai Region, Pune, Hyderabad, and Chennai, and is one of the largest Grade-A office portfolios globally. The portfolio has a total leasable area of ~ 46.2 msf comprising of 36.0 msf of completed area, 6.6 msf of area under construction and 3.5 msf of future development. The portfolio consists of 7 integrated business parks and 9 quality independent office assets with superior infrastructure and amenities. It has a diversified and high-quality tenant base, with over 312 tenants. Most of the buildings in the portfolio are either Gold or Platinum Green Building Certified (IGBC/LEED). The assets provide a community-based ecosystem and have been developed to meet the evolving standards of tenants, and the demands of ‘new age businesses’, making it amongst the preferred options for both multinational and domestic corporations. To know more visit: www.mindspacereit.com. About GRESB GRESB is your strategic partner for sustaina [Showing first 8,000 characters — download PDF for full document]