The Exchange has received the Disclosures of reasons for encumbrance by promoter of listed companies under Reg. 31(1) read with Regulation 28(3) of SEBI (SAST) Regulations, 2011 on September ....

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IRB · price

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Price reactionminutes from the announcement price · days from the prior close

-0.6%Reaction day

₹21.22

prior close

₹21.30

announcement price

After-mkt

timing

Nifty Smallcap 250market · index membership as recorded later (tracked since Jun 2026)+0.2%-0.7% vs market

Civil Construction peers, median of 87sector+0.1%-0.7% vs sector

On the reaction day the stock moved 0.7 pts less than Nifty Smallcap 250 and 0.7 pts less than its Civil Construction peers, over the same two closes: a difference in percentage points, not a measure of what the filing did.

Minutes after the announcementfrom the announcement price · no benchmark

Stock

-0.2

10m

-0.5

15m

+0.1

30m

+0.4

Sessions after the filingfrom the prior close

StockMarketvs marketSectorvs sector

Reaction day

-0.6+0.2-0.7+0.1-0.7

Next day

-0.5+0.4-0.9-0.3-0.1

+0.0+1.1-1.1+0.7-0.7

+0.1+1.1-1.0+0.2-0.1

+0.7+1.4-0.8+0.2+0.5

+2.0+2.1-0.0+1.0+1.0

+3.8+3.4+0.4+2.1+1.7

15d

-3.6-1.4-2.2-2.6-1.1

-1.5+0.3-1.8-2.2+0.7

+2.3+0.7+1.6-6.9+9.2

-1.8-4.6+2.8-13.4+11.6

UpDownMarket · Nifty Smallcap 250Sector · Civil Construction peers, median of 87Pending

Minute windows have no benchmark: there is no intraday index history to compare against.

AI summary

Promoter Smt. Sudha Dattatray Mhaiskar has created a pledge on 2,00,000 shares (0.003% of total share capital) of IRB Infrastructure Developers Ltd in favour of Kotak Securities Limited on August 29, 2025. The pledge is against a personal borrowing of Rs. 10 crore, with the pledged shares valued at Rs. 86 lakh (a cover ratio of 0.09x). The total promoter shareholding in IRB stands at 18.37 crore shares, representing 55.50% of total share capital. Cumulative encumbered shares as a percentage of promoter shareholding are reported at 30.42%. The end use of borrowed money is stated as security/cover.

Likely market impact

While this specific pledge is tiny (0.003% of capital), the cumulative encumbrance level of 30.42% of promoter holdings is noteworthy and may concern investors monitoring promoter leverage. Promoter shareholding remains comfortably above 50%, so no takeover-related threshold is breached.