A UDRHP is an Updated Draft Red Herring Prospectus filed by an Indian company using SEBI’s pre-filing route for a main-board initial public offering (IPO). UDRHP-I reflects the issuer’s response to SEBI observations; UDRHP-II, when filed, incorporates public comments on UDRHP-I. It is still a draft, so the final price, allotment price and complete offer size may be missing.
Use a UDRHP as a due-diligence document, not as an invitation to apply. Read the risks first, rebuild the company’s financial picture, trace exactly where the IPO money will go, examine promoters and related parties, and then verify every material change in the later Red Herring Prospectus (RHP), final prospectus and issue notices.
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Where a UDRHP fits in the IPO process
Indian main-board IPOs can follow a conventional route or the alternative pre-filing route under Chapter IIA of the SEBI ICDR framework. In the pre-filing route, the issuer submits an initial draft offer document and responds to SEBI’s observations before making the updated draft public.
- DRHP or initial draft offer document: The issuer discloses its business, finances, risks, management, proposed issue and other material information.
- UDRHP-I: The updated draft filed after the issuer has complied with SEBI observations.
- Public-comment period: The updated draft is made available for public comments for at least 21 days under the cited SEBI materials.
- UDRHP-II, where applicable: The next update after incorporating relevant public comments on UDRHP-I.
- RHP: The document filed with the Registrar of Companies before bidding opens.
- Final prospectus and post-issue notices: These reflect the final terms, allotment and subsequent disclosures.
Chapter-II requirements generally apply to the pre-filing route except where Chapter IIA changes them. NISM describes filing the DRHP as the point at which the IPO process starts and says investors use the RHP and prospectus to assess credibility, financial stability, growth potential and risk.
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The practical consequence is important: a UDRHP is useful for early analysis, but it is not the document on which you should base a final application decision.
UDRHP, DRHP, RHP and prospectus: the differences
| Document | What it is | When it appears | What may still change | How to use it |
|---|---|---|---|---|
| DRHP | Draft Red Herring Prospectus or initial draft offer document | At the start of the disclosure process | SEBI comments, public feedback, issue terms and other disclosures | Early research and identification of questions |
| UDRHP-I | Updated draft after compliance with SEBI observations | In the pre-filing route, before or during public review | Public comments, final pricing, final size and later corrections | Detailed preliminary due diligence |
| UDRHP-II | Further updated draft incorporating public comments on UDRHP-I | After the public-comment process, where applicable | RHP wording, price band, final size and issue-specific details | Version-to-version change analysis |
| RHP | Red Herring Prospectus filed with the Registrar of Companies before bidding | Immediately before the offer opens | Final allotment and certain post-bid details | Primary document for an application decision |
| Final prospectus | Post-pricing offer document containing final terms | After the price and allotment structure are settled | Usually no commercial decision should be based on an older draft once this is available | Confirm final terms and disclosures |
A UDRHP-I example filed with the authorities expressly warns that it “will not contain complete particulars of the price at which the Equity Shares will be Allotted and the size of the Offer.” Therefore, a missing price band or incomplete offer size is not automatically an omission by the issuer; it can be a feature of the filing stage.
Step 1: Establish document control before reading
IPO filings are revised, corrected and re-posted. Start by proving that you have the right issuer and the latest version.
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- Identify the issuer: Record the legal name, corporate identity number (CIN), registered office and industry.
- Label the document: Write down whether it is a DRHP, UDRHP-I, UDRHP-II or RHP.
- Record the filing date: Note the date printed on the cover and the date shown by the exchange or regulator.
- Capture the financial cut-off: Record the financial-year end, interim period and accounting basis used in every financial table.
- List the intermediaries: Note the lead managers, registrar and stock exchanges where the document is posted.
- Cross-check copies: Compare the regulator’s public-issues index with the exchange page and the issuer or lead-manager copy. Keep the files or page numbers for later comparison.
Do not mix a financial table from one version with a risk factor or issue size from another. A changed period, restated statement or corrected share count can make an otherwise careful comparison misleading.
Step 2: Read risk factors before the sales story
Risk factors are not a formality. The official offer-document warning tells investors to “read the risk factors carefully before taking an investment decision.” Read this section before the business highlights so that the company’s strengths do not frame your interpretation of its weaknesses.
Sort risks into decision-useful groups
- Company-specific: Dependence on a small number of products, sites, customers, suppliers or employees.
- Industry and market: Cyclicality, commodity prices, competition, demand changes and technology substitution.
- Regulatory: Licences, approvals, environmental rules, tax exposure and changes in law.
- Financial: Debt, interest-rate exposure, foreign-exchange movements, working-capital needs and covenant risk.
- Operational and technology: Manufacturing interruptions, cyber incidents, data loss, outages and quality failures.
- Legal and governance: Litigation, regulatory actions, defaults, insolvency proceedings and related-party transactions.
- Issue-related: Dilution, lock-ins, a secondary sale by existing holders, uncertain use of proceeds and the absence of a market after listing.
Look for signals that deserve a second reading
- Risks repeated in several sections or placed unusually early.
- Risks quantified with a large customer, geography, product or supplier concentration.
- Risks that conflict with the growth narrative, such as rising sales alongside worsening receivables or cash flow.
- Risks that depend on a permit, contract renewal, government customer or related company.
- Risks newly added, expanded or materially rewritten between UDRHP versions and the RHP.
Mark each risk as probability, financial impact and ability to mitigate. The filing may not provide a probability estimate, but this framework prevents a long, undifferentiated list from hiding the risks that could change your decision.
Step 3: Understand the business and industry claims
Read the business description with a fact-checking mindset. Record what the company sells, who pays, how it delivers the product or service, where it operates and what must remain true for the model to work.
Questions to answer from the filing
- What are the principal products or services, and how is revenue split among them?
- Which customers, distributors, suppliers, licences or platforms are essential?
- What capacity exists today, what new capacity is planned and what utilisation has actually been achieved?
- Which geographies contribute revenue, and does the company bear foreign-exchange or political risk there?
- What does the filing call a competitive strength, and what evidence supports that claim?
- Are market-size and growth estimates defined by units, revenue, geography and period?
Management’s market projections are claims, not guarantees. Check the definition, date, source and methodology attached to every market-size number. A “large addressable market” does not establish that the issuer can win customers, earn a margin or convert sales into cash.
Step 4: Rebuild the financial picture
Do not rely on the headline profit or a single growth percentage. Read the restated consolidated and standalone statements, notes, auditor’s report and the management discussion together.
Start with the statements and their basis
- Confirm whether a number is consolidated or standalone.
- Record the exact financial years and interim periods covered.
- Check the accounting policies, restatements, acquisitions, discontinued operations and one-off items.
- Read auditor qualifications, emphasis-of-matter paragraphs and any changes in auditors.
Test earnings quality
| Area | What to calculate or compare | Warning sign |
|---|---|---|
| Revenue | Growth by product, customer and geography; organic growth versus acquisitions | Growth concentrated in one customer, contract or untested market |
| Margins | Gross, operating and net margins across each reported period | A sudden improvement explained by a one-off item, accounting change or low base |
| Cash conversion | Cash from operations against reported profit | Profit rises while operating cash flow remains weak or negative |
| Receivables | Receivable growth, ageing and customer concentration | Receivables grow faster than sales or old balances remain unpaid |
| Inventory | Inventory growth, turnover and write-downs | Inventory builds without matching sales or capacity utilisation |
| Capital expenditure | Committed spending, funding source, completion status and expected capacity | Large future spending with no clear financing or execution timetable |
| Debt | Borrowings, interest cost, maturity dates, security and covenants | Refinancing needs, pledged assets or high leverage relative to peers |
| Contingent liabilities | Tax claims, guarantees, litigation and other disclosed obligations | A potential obligation large enough to alter net worth or cash needs |
When profit growth does not convert into cash, investigate working capital, customer credit, inventory, capitalised costs and one-off gains before treating the growth as durable.
Step 5: Trace exactly where the IPO money goes
Separate a fresh issue from an offer for sale (OFS). Fresh-issue proceeds go to the company for the stated objects of the issue. OFS proceeds go to selling shareholders; that portion does not fund the company.
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|---|---|---|
| Recipient of proceeds | The issuer | Existing shareholders selling their shares |
| Effect on company cash | Increases cash before issue expenses and stated uses | Does not add that sale amount to company cash |
| Typical stated purpose | Capital expenditure, debt repayment, working capital or general corporate purposes | Shareholder liquidity or partial exit |
| Investor question | Can management execute the stated plan and produce the promised benefit? | Why are existing holders selling, and how much control remains? |
Build an objects-of-the-issue checklist
- Copy the amount assigned to each object, including the permitted general-corporate-purpose component.
- Record the implementation timetable and the project’s status at the filing date.
- Identify whether the amount is a fresh estimate, a refinancing plan or a reimbursement of spending already incurred.
- Check the risks of delay, cost overruns, permits, land, technology or supplier dependence.
- Compare the objects and amounts in UDRHP-I, UDRHP-II and the RHP. Flag every changed number.
A large issue is not automatically beneficial. The relevant question is whether the use of proceeds addresses a binding constraint and whether the expected return justifies the dilution and execution risk.
Step 6: Examine people, ownership and conflicts
Review promoters, promoter-group entities, directors and senior management rather than treating the management biography as a trust statement.
- Check promoter and promoter-group ownership before and after the issue.
- Identify pledged shares, encumbrances, lock-ins and any change-of-control implications.
- Read the performance and financial position of group companies, especially those with similar businesses.
- List related-party transactions, balances, guarantees, loans, leases and purchases or sales involving connected entities.
- Review remuneration, employment agreements, past defaults, insolvency proceedings, litigation and regulatory actions.
- Separate shares sold by existing holders from new shares issued by the company when assessing post-IPO control.
Control can remain concentrated even after a substantial public float. A promoter’s continuing control is not by itself a defect, but it makes voting rights, related-party safeguards and board independence important parts of the analysis.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Step 7: Test valuation and issue structure
The “Basis for Issue Price” section explains how the issuer presents its valuation. Treat it as an argument to test, not as an independent valuation conclusion.
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Make the peer comparison genuinely comparable
- Use the same earnings period and accounting basis for the issuer and each peer.
- Check whether the comparison uses consolidated or standalone figures.
- Compare businesses with similar products, geography, growth, margins, leverage and regulation.
- Understand whether price-to-earnings, enterprise-value multiples, return on net worth or other metrics use adjusted or non-GAAP figures.
- Investigate exclusions, exceptional items and negative-earnings periods before accepting a multiple.
Do not infer a final valuation from a UDRHP when the price band or final offer size has not been disclosed. The price, share count, dilution and resulting market capitalisation must be taken from the latest RHP or prospectus.
Inspect the structure of the offer
- Fresh issue and OFS proportions.
- Reservation categories and any employee or shareholder reservation.
- Anchor-investor provisions, if applicable.
- Bid lot and minimum application size.
- Price band, cut-off bidding and issue timetable once published.
- Pre-IPO placements, changes in share capital and the effect on dilution.
- Lock-in periods for promoters and other shareholders.
Step 8: Compare versions and compare IPOs
Version comparison is where a UDRHP becomes especially useful. Create a change log rather than relying on memory.
| Comparison area | What to record |
|---|---|
| Document stage | DRHP, UDRHP-I, UDRHP-II or RHP, with filing date |
| Financial information | New financial year, interim period, restatements and accounting changes |
| Issue size | Total shares, fresh issue, OFS and any change in the object-of-issue amount |
| Risk disclosure | New, expanded, removed or materially reworded risks |
| Ownership | Promoter, promoter-group and public shareholding before and after the offer |
| Price-related information | Price band, valuation metrics, bid lot and any newly disclosed price basis |
| Legal and governance matters | New litigation, regulatory actions, defaults, related-party transactions or auditor changes |
When comparing two IPOs, use the same axes: document completeness; financial cut-off dates; fresh issue versus OFS; revenue quality and cash conversion; leverage and contingent liabilities; promoter and related-party risk; litigation and regulatory exposure; valuation against an appropriate peer set; dilution and lock-ins; and the amount of unresolved or newly added risk disclosure.
Step 9: Finish with the RHP, prospectus and notices
Before applying, replace the draft with the latest decision document. SEBI investor guidance says applicants should read the entire RHP or prospectus, the application form and the abridged prospectus before investing.
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- Read every addendum and corrigendum, not just the original PDF.
- Confirm the price band, issue size, fresh issue, OFS, bid lot, timetable and reservation categories.
- Recheck the basis of issue price using the final disclosed figures.
- Read price-band notices, any anchor-investor disclosure and the basis-of-allotment notice when published.
- Confirm that the final terms have not introduced a risk or changed an object of the issue that would alter your decision.
The RHP, final prospectus and later notices supersede an earlier draft for an application decision. A UDRHP can tell you what to investigate; it cannot tell you the final price you will pay or guarantee that the disclosed plan will succeed.
A printable UDRHP reading worksheet
Use one row for each material issue and cite the page number in your own notes.
Quick Recap
| Question | Your recorded answer |
|---|---|
| Which document and version am I reading? | Issuer, DRHP/UDRHP-I/UDRHP-II/RHP, filing date |
| What are the three most financially significant risks? | Risk, possible impact, mitigation and page |
| How does the company make money? | Products, customers, geographies and dependencies |
| Does profit convert into cash? | Operating cash flow, receivables, inventory and one-offs |
| Where does the money go? | Fresh issue objects, timetable, OFS amount and execution risks |
| Who controls the company after listing? | Promoter ownership, dilution, lock-ins and pledges |
| What conflicts exist? | Related parties, group companies, litigation and remuneration |
| Is the valuation comparison like-for-like? | Period, accounting basis, peer business, leverage and metric |
| What changed in the latest filing? | Numbers, risks, ownership, issue objects and price disclosures |
| What remains unknown? | Missing price, offer size, financial period or unresolved risk |
Common mistakes to avoid
- Applying from a UDRHP alone: Draft terms can change and final pricing may be absent.
- Reading the highlights first: The sales narrative can anchor you before you see the downside.
- Treating revenue growth as cash generation: Working capital and one-off items can absorb the cash.
- Counting OFS proceeds as company funding: Existing shareholders receive that money.
- Accepting peer multiples without checking definitions: Different periods, accounting bases and leverage make the comparison unreliable.
- Ignoring version changes: Newly added risks, revised objects or a different share count can be material.
- Assuming a long risk list means every risk is equally important: Concentration, litigation, debt and regulatory dependencies often deserve priority.
- Stopping at the original filing: Addenda, corrigenda, the RHP, prospectus and allotment notices can supersede it.
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