The Securities and Exchange Board of India (SEBI), the market regulator, has approved the Initial Public Offering (IPO) of Mahanadi Coalfields. The company is a unit of state-run Coal India. Coal India plans to sell a 10% stake, or up to 661.8 million shares, according to Economic Times.
The offer is expected to be one of India's biggest this year. It matters because Mahanadi Coalfields mines a large part of India's coal. Ordinary investors may get a chance to own shares in it directly for the first time.
What happened
Economic Times and The Hindu BusinessLine both reported the approval. Their reports carried the same main details. Neither report gave the IPO dates, the price band or the lot size.
The plan is not new. In September, Coal India filed draft papers with SEBI. These papers showed that Coal India would sell a 10% stake in Mahanadi Coalfields through the IPO. SEBI's approval is an important step. A company usually needs it before it can open an IPO to the public.
This sale is part of a wider plan. In March, Coal India said it could sell up to 25% stakes in two units: Mahanadi Coalfields and South Eastern Coalfields. It said this could happen through IPOs or other routes. So the 10% now on offer is below the upper limit Coal India had spoken about. We wrote about South Eastern Coalfields in an earlier Coal India story.
Size and timing
Coal India has not shared an official size for the IPO in these reports. But Bloomberg reported on 2 November, citing sources, that Coal India is getting ready to launch the IPO as early as this month. This is according to Economic Times and The Hindu BusinessLine, which quoted that report.
The Bloomberg report said the offer could raise as much as $1 billion. It also said Mahanadi Coalfields could be valued at as much as $10 billion. These are reported figures, not final numbers. The real size will depend on the price band the company fixes later.
Big share sales have been common in India this year. Both reports named the offers by Jio Platforms and the National Stock Exchange of India. You can read our Jio Platforms IPO explainer for an idea of how such a large offer works.
The numbers
| Item | Figure | Where it comes from |
|---|---|---|
| Stake Coal India plans to sell | 10% | Draft papers filed in September |
| Shares on offer | Up to 661.8 million | Draft prospectus |
| Mahanadi Coalfields' share of India's domestic coal output, fiscal 2026 | 21% | Economic Times, The Hindu BusinessLine |
| Mahanadi Coalfields' share of Coal India's coal output, fiscal 2026 | 28.4% | Economic Times, The Hindu BusinessLine |
| Coal India's share of India's coal output, fiscal 2026 | About 74% | Economic Times, The Hindu BusinessLine |
| Possible IPO size | Up to $1 billion | Bloomberg report |
| Possible value of the company | Up to $10 billion | Bloomberg report |
The table shows how much is being sold, how big the company is in India's coal output, and what the reported deal size may be.
Mahanadi Coalfields works mainly in eastern Odisha. In fiscal 2026, it mined a little more than one-fifth of India's domestic coal. It also produced more than a quarter of all of Coal India's coal. So it is one of the most important parts of the parent company.
A few simple checks help here. 661.8 million shares is the same as 66.18 crore shares (our calculation). Also, $1 billion is 10% of $10 billion (our calculation). That matches the 10% stake on offer. Lastly, 28.4% of Coal India's 74% share comes to about 21% of India's output (our calculation). That matches the reported 21%.
Coal India shares today
Coal India shares were trading at ₹394.9 on 5 November, down 1.19% for the day, according to Economic Times live updates. Over six months, the stock has fallen 16.71%. The reports did not give a reason for the day's fall. We do not link it to the IPO news.
A six-month return tells you how much the price has changed over the last six months. For example, a stock that fell from ₹100 to ₹84 would show a six-month return of about -16%. You can also read our earlier report on Coal India's IPO plan and dividend record date.
What it means for a small investor
Today, if you want exposure to Mahanadi Coalfields, you can only buy Coal India shares. After listing, the unit would trade on its own. Investors could then choose the parent, the unit, both or neither.
In this offer, Coal India is the one selling shares. In general, when an existing owner sells shares in an IPO, the money from those shares goes to the seller, not to the company being listed. The reports do not say whether Mahanadi Coalfields will also issue any new shares.
Key details such as the price band, lot size and dates usually come in the final offer document. Our IPO section explains these terms when a new offer opens.
Risks to keep in mind
- Numbers can change: The $1 billion size and $10 billion value come from a Bloomberg report citing sources. Coal India has not confirmed them in these reports.
- Timing is not fixed: "As early as this month" is a report, not an announced date.
- One region, one product: The company works mainly in eastern Odisha and depends on coal. Problems in that area or in coal demand can affect it.
- Listing price risk: A new share can list below its IPO price. The 16.71% six-month fall in Coal India shares shows how much prices can move.
- Government policy: Both Coal India and its units are state-run. Government decisions on coal, power or stake sales can affect their shares.
What to watch next
- The official IPO dates, price band and lot size.
- Whether the final size matches the reported $1 billion.
- Any further news on South Eastern Coalfields.
- How Coal India shares move as the IPO comes closer.
For confirmed details, check company filings on the BSE or NSE website and the final offer document.
Words explained
- IPO: The first time a company sells its shares to the public. After this, the shares trade on a stock exchange.
- SEBI: India's stock market regulator. It checks offer papers before an IPO can open.
- Unit (subsidiary): A company owned and controlled by a bigger parent company. Mahanadi Coalfields is a unit of Coal India.
- Stake: The part of a company someone owns. A 10% stake means one-tenth of the company.
- Draft prospectus: The first offer document a company files with SEBI. It explains the business, the offer and the risks.
- Price band: The lowest and highest price at which investors can apply for IPO shares.
- Valuation: The total value placed on a company. It works like a price tag for the whole business.
- Fiscal year: The 12-month period a company uses for its accounts. In India, it usually runs from April to March.
- Six-month return: How much a share price has risen or fallen over the last six months, shown as a percentage.
Sources: Economic Times, The Hindu BusinessLine.
This article is for information and education only. It is not investment advice. MarketUpDown is not registered with SEBI as an investment adviser or research analyst. Read our disclaimer.