IRB Infrastructure Developers Limited — Regulatory Filings 2026

Jun 5, 2026

Date: April 06, 2026

| Listing Department
National Stock Exchange of India Limited
Exchange Plaza, C-1 Block G,
Bandra Kurla Complex, Bandra (E),
Mumbai -400 051
Fax No. 022-26598120/38 | Corporate Relationship Department
BSE Limited
Phiroze Jeejeebhoy Towers,
Dalal Street,
Mumbai- 400001
Fax No. 022-22723121/3027/2039/2061 |
| --- | --- |

Dear Sir/Madam,

Scrip Code : 532947
Scrip Symbol : IRB

Sub: Disclosures under Regulation 31(4) of the SEBI (Substantial Acquisition of Shares & Takeovers) Regulations, 2011

Pursuant to Regulation 31(4) of the SEBI (Substantial Acquisition of Shares & Takeovers) Regulations, 2011, (as amended), we, the "Promoter Group" of IRB Infrastructure Developers Limited ("Company") declare that we have not made any encumbrance on the shares of the Company, directly or indirectly, other than those already disclosed to the Exchange during the Financial Year 2025-26.

You are requested to kindly take the same on your record.

Thanking you.

Yours faithfully,

For DSM Projects Pvt. Ltd.
For SDM Ventures Pvt. Ltd.

Sinhaskar
Sudha D. Mhaiskar
Director
DIN: 00707501

Sinhaskar
Sudha D. Mhaiskar
Director
DIN: 00707501

CC:
IRB Infrastructure Developers Limited
Off No-11th Floor/1101 Hiranandani Knowledge Park,
Technology Street, Hill Side Avenue, Powai, Mumbai - 400076