Coal India Limited has informed the Exchange regarding 'Filing of Red Herring Prospectus(RHP) of Central Mine Planning and Design Institute Limited (CMPDIL), a wholly owned Subsidiary of CIL, with SEBI'.

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COALINDIA · price

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

-0.7%Reaction day

₹470.00

prior close

₹465.25

announcement price

In-mkt

timing

Nifty 100market · index membership as recorded later (tracked since Jun 2026)-2.2%+1.4% vs market

Oil Gas & Consumable Fuels peers, median of 38sector · sector level-2.3%+1.6% vs sector

On the reaction day the stock moved 1.4 pts more than Nifty 100 and 1.6 pts more than its Oil Gas & Consumable Fuels 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

+0.0

10m

+0.4

15m

+0.8

30m

+0.5

Sessions after the filingfrom the prior close

StockMarketvs marketSectorvs sector

Reaction day

-0.7-2.2+1.4-2.3+1.6

Next day

-2.3-1.3-1.0-4.1+1.8

-2.0-0.6-1.4-3.7+1.7

-2.7+0.3-3.0-2.4-0.3

-3.3-3.0-0.4-4.5+1.2

-0.5-2.5+2.0-4.0+3.5

-6.0-3.6-2.4-6.5+0.5

15d

-4.5+1.2-5.7-2.2-2.3

-7.3+0.9-8.3-0.3-7.1

-2.1-0.0-2.1+5.2-7.3

-4.8+2.2-7.0+4.9-9.7

UpDownMarket · Nifty 100Sector · Oil Gas & Consumable Fuels peers, median of 38Pending

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

AI summary

Coal India has informed the exchanges that its wholly owned subsidiary, Central Mine Planning and Design Institute Limited (CMPDIL), has filed its Red Herring Prospectus (RHP) dated 12th March 2026 with SEBI, BSE, and NSE. The proposed IPO will be entirely an Offer for Sale (OFS) of up to 10.71 crore (107,100,000) equity shares by Coal India, with no fresh issue of shares. The IPO remains subject to market conditions and required regulatory approvals. CMPDIL is the planning and design arm of Coal India, and this marks a significant step toward its listing.

Likely market impact

Positive for Coal India shareholders as the CMPDIL listing could unlock hidden value in the subsidiary. Since it's a pure OFS, Coal India will receive the sale proceeds, and the dilution applies only to CMPDIL, not CIL's existing operations.