South Eastern Coalfields Limited (SECL), one of Coal India Limited’s largest and most profitable operating subsidiaries, is preparing for a potential public listing that could raise as much as $800 million, or around ₹6,600 crore, in what could become one of the biggest coal-sector IPOs in India.
According to people familiar with the proposed transaction SECL has appointed ICICI Securities, SBI Capital Markets, Motilal Oswal Investment Advisors and IDBI Capital Markets & Securities as advisers for the proposed share sale. The company is targeting a Draft Red Herring Prospectus (DRHP) filing as early as December 2026. The sources cautioned that the size and timing of the issue could still change.
The proposed IPO comes as Coal India steps up its strategy of bringing its major subsidiaries to the stock market. The listing of SECL would follow the successful market debuts of Bharat Coking Coal Limited (BCCL) and Central Mine Planning & Design Institute (CMPDI) earlier this year, while Mahanadi Coalfields Limited (MCL) has already entered the IPO pipeline.
Board approval already in place
The SECL listing is not merely a proposal at the discussion stage.
Coal India’s board had given in-principle approval for SECL’s listing in December 2025. Subsequently, at its meeting on March 23, 2026, the board approved the proposed disinvestment of up to 25% of Coal India’s equity stake in SECL through an Offer for Sale (OFS).
Importantly, the March approval also provides for a fresh issue of equity shares by SECL of up to 10% of its post-issue paid-up equity share capital through an IPO and/or other permissible domestic-market routes.
The proposed transaction remains subject to the required regulatory approvals and completion of the necessary formalities.
That structure makes the SECL transaction potentially different from some of Coal India’s earlier subsidiary listings. While an OFS allows the parent company to monetise its holding, a fresh issue can also bring capital directly into the subsidiary.
A ₹6,600-crore IPO — but the final number is not fixed
The reported $800-million potential size has generated considerable interest because it would place SECL among the more substantial PSU offerings in the Indian capital market.
At current exchange rates, $800 million translates to roughly ₹6,600 crore. However, this should not be treated as the final issue size.
The figure comes from people familiar with the proposed transaction, while discussions on the offering are continuing. The final size will depend on the valuation of SECL, the eventual equity dilution, market conditions, regulatory approvals and the structure ultimately approved by Coal India and the government.
The DRHP, once filed with the Securities and Exchange Board of India, will provide considerably greater clarity on the proposed issue, including the number of shares, offer structure and other material details.
SECL is no ordinary Coal India subsidiary
The attraction of SECL for public-market investors lies in its scale.
SECL operates coal mines across Chhattisgarh and Madhya Pradesh and is one of Coal India’s largest production subsidiaries. Recent reports put its operating footprint at 60 mines — 35 in Chhattisgarh and 25 in Madhya Pradesh.
Its financial and production numbers underline why the proposed listing is significant.
According to Coal India’s FY26 figures cited by Business Standard, SECL produced 176.29 million tonnes of coal during FY26 and reported a profit after tax of ₹4,755 crore.
Those numbers give the proposed IPO considerable scale even before the market assigns a valuation to the company.
From subsidiary to separately valued company
The larger story behind the SECL IPO is the gradual transformation of Coal India’s subsidiary structure.
For years, the financial strength of companies such as SECL and MCL has largely been reflected within Coal India’s consolidated balance sheet. Separate listings can change that equation by giving investors an opportunity to value individual businesses independently.
Coal India Chairman and Managing Director B. Sairam has described the subsidiary listings as an important step towards unlocking value, widening access to capital markets and strengthening Coal India’s position as a diversified listed public-sector enterprise.
The strategy has already moved beyond the planning stage.
BCCL was listed in January 2026, while CMPDI made its market debut in March. MCL has subsequently filed its draft IPO papers with SEBI, putting SECL next in the rapidly expanding Coal India subsidiary-listing pipeline.
SECL and MCL could reshape Coal India’s market architecture
The significance of the SECL transaction becomes clearer when viewed alongside MCL.
MCL is also among Coal India’s largest operating subsidiaries. In FY26, MCL produced 218.31 million tonnes, the highest production among Coal India’s subsidiaries, and reported a profit after tax of ₹10,698 crore. SECL followed with 176.29 million tonnes and ₹4,755 crore in profit after tax.
Coal India has said that both MCL and SECL are planned for listing during FY27, although the exact timing will depend on market conditions and government directions.
If both transactions progress as planned, Coal India could effectively create a much more transparent market valuation framework around some of its largest operating assets.
What happens to Coal India’s stake?
The March board approval provides for up to 25% dilution by Coal India through OFS, along with the possibility of a fresh issue of up to 10% by SECL.
The distinction is important.
Under an OFS, proceeds from shares sold by Coal India would accrue to the parent rather than SECL. A fresh issue, by contrast, would raise capital for SECL itself.
The final combination of the two routes will therefore determine how much of the transaction represents value monetisation by Coal India and how much represents capital raising by SECL.
That structure should become clearer when the company moves towards its DRHP.
A new test for Coal India’s subsidiary strategy
The SECL IPO will also provide an important market test for Coal India’s broader subsidiary-listing strategy.
The government has been pushing for greater monetisation, transparency and market participation across the Coal India group. In December 2025, reports said the government wanted Coal India’s subsidiaries to be progressively brought to the stock market by 2030.
The sequence is now becoming visible: BCCL and CMPDI have already been listed, MCL has moved into the DRHP stage, and SECL is preparing its own IPO documentation.
For investors, however, the SECL transaction will ultimately be judged on the company’s fundamentals, valuation and the terms of the issue rather than simply its parentage.
For Coal India, the implications are potentially broader. A successful SECL listing could provide another independently traded benchmark for the value of its operating subsidiaries and strengthen the case for further market listings within the group.
December DRHP is the next big milestone
The immediate milestone is therefore December 2026, when SECL is targeting the filing of its preliminary offer document.
Until that filing takes place, the $800-million figure, final issue size and precise timing should be regarded as proposed rather than final. The company has appointed advisers and Coal India’s board has already approved the broad disinvestment structure, but regulatory approvals and other formalities remain.
If the timetable holds, SECL could enter the capital markets before the end of FY27 — taking Coal India’s subsidiary-listing programme another significant step forward.
And unlike a conventional PSU IPO, this one carries a larger strategic question: how much of the value sitting inside Coal India’s sprawling subsidiary network can ultimately be unlocked and separately recognised by the market?
