IRB Infrastructure Developers Limited — Major Shareholding Notification 2026

May 29, 2026

27th May, 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. 022-26598238
Scrip Symbol: IRB | Corporate Relationship Department BSE Limited Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai- 400001
Fax No. 022-22723121/3027/2039/2061
Security Code: 532947 |
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Dear Sir/ Madam,

Sub: Disclosure by Promoter Group under Regulation 29(2) of the SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011.

Please find enclosed herewith the captioned disclosure in the prescribed format as required under Regulation 29(2) of the SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011 regarding Invocation of 15,000 Shares of IRB Infrastructure Developers Limited by Anand Rathi Global Finance Limited.

This is for your information and records.

Thanking You.

Yours Faithfully,

Sinhaskar

Sudha D. Mhaiskar
Promoter Group of IRB Infrastructure Developers Limited

Encl.: a/a

Copy to: Mehul Patel
President, Corporate Affairs & Group Company Secretary
IRB Infrastructure Developers Ltd.
Mumbai

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Disclosures under Regulation 29(2) of the SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011

Name of the Target Company		IRB Infrastructure Developers Limited
Name of the acquirer and Persons Acting in concert with them		Sudha Dattatray Mhaiskar
Whether the Acquirer belongs to the Promoter / Promoter group		Promoter Group
Name(s) of the Stock Exchanges where the shares of the Target Co Listed		National Stock Exchange of India Limited and BSE Limited
Details of the acquisition / disposal as follows		Number of Shares	% w.r.t. total share/voting capital wherever applicable	% w.r.t. total diluted shares/voting capital of the TC (*)
Before the acquisition/sale under consideration, holding of :
a.	Shares carrying voting rights	32160	0.00	0.00
b.	Shares in the nature of encumbrance (pledge/ lien/non-disposal undertaking/ others)	1304000	0.01	0.01
c.	Voting rights (VR) otherwise than by shares	-	-	-
d.	Warrants/Convertible securities/any other instrument that entitles the acquirer to receive the shares carrying voting in the TC (specify holding in each category) acquired/sold	-	-	-
e.	Total (a+b+c+d)	1336160	0.01	0.01
	Before the acquisition/sale
a.	Shares carrying voting rights acquired/sold	-	-	-
b.	VRs acquired /sold otherwise than by shares	-	-	-
c.	Warrants/convertible securities/any other instrument that entitles the acquirer to receive shares carrying voting rights in the TC (specify holding in each category) acquired/sold	-	-	-
d.	Shares encumbered /invoked/released by the acquirer	15000	0.00	0.00
e.	Total (a+b+c+d)	15000	0.00	0.00
After the acquisition/sale
a.	Shares carrying voting rights acquired/sold	32160	0.00	0.00
b.	Shares encumbered with the acquirer	1289000	0.01	0.01
c.	VRs acquired/sold otherwise than by shares	-	-	-
d.	Warrants/Convertible securities/any other instrument that entitles the acquirer to receive the shares carrying voting in the TC (specify holding in each category) acquired/sold	-	-	-
e.	Total (a+b+c+d)	1321160	0.01	0.01
Mode of acquisition/sale (e.g. Open market/off-market/ public issue/rights issue/preferential allotment/inter-se transfer etc.)		Invocation of Shares Pledged
Date of acquisition/sale of shares/VR or date of receipt of intimation of allotment of shares, whichever is applicable		15000 Shares invoked on 22/05/2026 by Anand Rathi Global Finance Limited
Equity Share Capital/total voting capital of the TC before the said acquisition/sale		12078000000 equity shares of Rs.10/- each
Equity Share Capital/total voting capital of the TC after the said acquisition/sale		12078000000 equity shares of Rs.10/- each
Total diluted share/voting capital of the TC after the said acquisition/sale		12078000000 equity shares of Rs.10/- each

Smhaskers

Sudha D. Mhaiskar

Promoter Group

Place: Mumbai

Date: 27/05/2026