India’s mainboard IPO calendar is entering a quieter phase in November, with no new mainboard issue having announced an opening date or price band so far. However, four companies have received fresh observations from the Securities and Exchange Board of India (SEBI), bringing them closer to a possible public-market debut.
The next set of IPO launches will depend on when these companies file their Red Herring Prospectuses (RHPs), disclose their price bands and announce subscription dates. Until then, investors can track the approved pipeline, recent listings and activity in the SME segment.
Four mainboard IPOs move closer to launch
SEBI issued observations on the draft offer documents of four companies between October 27 and October 30. This allows them to proceed with the next steps towards a public issue. It does not mean that their IPOs are open or that launch dates have been fixed.
The important distinction for investors is that a company generally announces its IPO dates and price band through its RHP and related offer documents. These four companies are now among the names to watch in the upcoming mainboard pipeline.
Atomberg Technologies
Home appliances and energy-efficient fans
Atomberg is one of the more closely watched names in the pipeline because of its presence in the consumer appliance market, particularly energy-efficient fans. Its proposed IPO comprises a fresh issue of up to ₹450 crore and an offer for sale of approximately 7.65 crore shares by existing investors.
The fresh capital is intended to support the business rather than simply provide an exit for existing shareholders. The company has earmarked around ₹150 crore for brand awareness and marketing, ₹100 crore for research and development, and ₹90 crore for debt repayment. The balance is intended for general corporate purposes.
Investors will want to examine its growth, margins, competitive position and ability to convert brand recognition into sustainable profitability when the RHP becomes available.
Ratnadeep Retail
Grocery and organised retail
Hyderabad-based Ratnadeep Retail plans a fresh issue of up to ₹400 crore, alongside an offer for sale of approximately 1.49 crore shares by promoters.
The proposed fresh capital is expected to fund expansion, including new stores under its Ratnadeep and National Mart formats, as well as debt repayment and general corporate purposes. The company operates across South India, giving investors an opportunity to assess its regional retail business and expansion plans.
The key questions will be whether new stores can generate attractive returns, how the company manages operating costs and whether its expansion can sustain profitability.
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Punjab Carbonic
Liquid carbon dioxide and dry ice
Punjab Carbonic has proposed an issue of 95 lakh shares, split between a fresh issue of 60 lakh shares and an offer for sale of 35 lakh shares by promoters.
The company produces and distributes liquid carbon dioxide and dry ice, serving industries that include food and beverages, chemicals, healthcare and pharmaceuticals. The fresh issue proceeds are intended to support additional CO₂ recovery capacity in Andhra Pradesh, transportation infrastructure, expansion of its ethanol business and debt repayment.
Investors should pay particular attention to the capital required for expansion, project execution, customer concentration and the economics of its different business segments.
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GNI Infrastructure
Construction and road infrastructure
GNI Infrastructure’s proposed IPO consists of a fresh issue of approximately 2.10 crore shares and an offer for sale of around 93.88 lakh shares by existing shareholders.
The company operates in infrastructure development, with its fresh issue proceeds intended to support working capital requirements and general corporate purposes. For investors, the important factors will include its project pipeline, order execution, receivables, working-capital cycle and ability to maintain margins.
Recent mainboard IPO listings
The first week of November brought several mainboard listings. Their performance offers a useful snapshot of how investors have responded to different businesses and issue valuations.
Also Read: India Top News Today, November 10, 2026: Adani Investment, Renewable Energy and Manufacturing
| Company | Issue price band | Issue size | Listing date |
|---|---|---|---|
| EAAA India Alternatives | ₹1,585–1,665 | ₹1,200 crore | November 2 |
| BLS Polymers | ₹142–150 | ₹255 crore | November 3 |
| SFC Environmental Technologies | ₹313–330 | ₹667.5 crore | November 3 |
| M.K. Sons Fine Jewels | ₹150–162 | ₹275.4 crore | November 4 |
| Bombay Coated and Special Steels | ₹78–82 | ₹183 crore | November 5 |
Bombay Coated and Special Steels attracted particularly strong demand, with its issue subscribed approximately 60.8 times overall. BLS Polymers also saw exceptionally high demand, while SFC Environmental Technologies and EAAA India Alternatives recorded more moderate subscription levels.
The broader lesson is that strong subscription figures do not guarantee similar listing gains across every IPO. Investors need to assess the business and valuation rather than relying only on demand during the bidding period.
Recent SME IPO activity
The SME segment has seen considerable activity, including a few strong subscription numbers and sharply different listing outcomes.
| Company | Price band | Subscription / listing update |
|---|---|---|
| HGS India | ₹114–120 | Subscribed around 231 times overall; listed at ₹160 |
| Johnsoncab Electricals | ₹190–200 | Subscribed around 22 times |
| Vectras Enprocon | ₹99–105 | Subscribed around 4 times |
| Maxwell Engineering Solutions | ₹150–158 | Strong subscription demand |
| Vedant Poly Fabs | ₹88–94 | Listed November 9 |
| Antala Industries | ₹62–66 | Listed November 11 |
HGS India illustrates why the listing price and subsequent market price should not be confused. It debuted at ₹160 against its ₹120 issue price, a listing gain of about 33%. Its later market price moved higher, with the reported quote around ₹185.20 representing a gain of roughly 54% over the issue price.
Also Read: India Top News Today, November 10, 2026: DLF Deal, TRAI Rules and RBI Action
Antala Industries, which listed on November 11, opened at ₹52.80 against its issue price of ₹66, a discount of 20%. The contrasting outcomes underline the risks of treating high subscription demand as a reliable predictor of listing performance.
Anthropic IPO draws attention in the US market
While India’s mainboard IPO calendar awaits fresh launch announcements, the proposed Anthropic IPO is emerging as one of the biggest global public-market events to watch.
The AI company behind Claude began its investor roadshow on November 10. Its proposed offering covers approximately 825 million shares, with a price range of $70 to $78 per share. The proposed Nasdaq ticker is ANT, and trading is expected around November 19 or 20, subject to the final timetable.
At the proposed price range, the offering could value Anthropic at approximately $1.4 trillion on a fully diluted basis. The scale of the transaction makes it an important test of investor appetite for large AI businesses, particularly as concerns about technology valuations, infrastructure spending and the returns on AI investment remain in focus.
For Indian investors, the offering is worth following as an international market development rather than as a direct indicator of domestic IPO performance. Its eventual pricing and investor response could provide a useful signal about global demand for high-growth technology companies.
How retail investors should read an IPO
Before applying for an IPO, investors should look beyond the headline issue size and subscription figures. A few details in the offer document can help explain what they are actually buying.
- Price band: This is the range within which investors can bid. Compare the implied valuation with the company’s earnings, revenue, growth prospects and listed competitors.
- Issue size: Check the total value of the offering, but also separate the fresh issue from the offer for sale.
- Fresh issue: The company receives the proceeds, which may be used for expansion, debt repayment, working capital or other disclosed purposes.
- Offer for sale (OFS): Existing shareholders sell their shares. The proceeds go to those selling shareholders, not to the company.
- Subscription figures: High demand indicates investor interest, but it does not establish that the IPO is attractively valued or guarantee listing gains.
- Grey market premium (GMP): GMP is unofficial and not an exchange-confirmed indicator. It can change quickly and should never be treated as a guaranteed listing price.
The RHP is particularly important because it provides the detailed financial statements, risk factors, promoter information, use of proceeds and other disclosures needed to evaluate an issue.
What investors should watch next
The immediate focus for India’s IPO market is the RHP and price-band announcements from Atomberg Technologies, Ratnadeep Retail, Punjab Carbonic and GNI Infrastructure. Their SEBI observations have moved them closer to launch, but the actual timetable will become clearer only when the companies publish their final offer documents.
Investors should also keep an eye on the SME listing pipeline and the performance of recently listed companies. The mixed outcomes from HGS India and Antala Industries show why subscription demand and listing expectations need to be assessed carefully.
For now, November’s mainboard IPO calendar has no newly announced opening dates or price bands. The four newly cleared companies provide the most interesting developments in the domestic pipeline, while Anthropic’s proposed US listing is a major international event to follow.
Disclaimer: This article is for informational and educational purposes only. It does not constitute investment advice or a recommendation to buy or sell any securities. Onetrader is not a SEBI-registered investment adviser or research analyst. Investors should conduct their own research or consult a qualified financial adviser before making investment decisions.
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