Editor’s note: This is an educational explainer about how India’s IPO disclosure framework generally works. It is general information, not investment advice, and does not describe any specific current event, company, or security.
Why does a document with a name as odd as “red herring prospectus” sit at the center of every Indian stock market debut, and why is it deliberately incomplete when it is first published? The answer lies in a regulatory design built over decades by the Securities and Exchange Board of India (SEBI), one meant to close the information gap between company insiders, large institutional buyers, and the retail investors who often decide to apply for shares based on little more than a headline and a subscription number.
The Red Herring Prospectus and the Logic of Staggered Disclosure
When a company decides to go public in India, it does not simply announce a price and open a portal. It first files a draft red herring prospectus (DRHP) with SEBI, a lengthy document covering the business, its financials, risk factors, promoter shareholding, litigation history, and the intended use of proceeds. The “red herring” label comes from a bolded disclaimer printed in red on the cover, warning readers that the document is provisional and does not yet contain final pricing. SEBI’s merchant bankers review this filing, and the regulator can seek clarifications or additional disclosures before it is allowed to proceed.
The deliberate omission of the final price band at this stage is not an oversight, it is structural. By requiring the business and risk disclosures to be locked in before the price is set, SEBI aims to prevent a company from tailoring its narrative around a number it wants investors to accept. Only later, closer to the offer opening, does an updated red herring prospectus emerge with the price band attached, giving investors a fixed window to read pricing against the previously disclosed fundamentals rather than the reverse.
Anchor Investors: A Price Signal With Strings Attached
A day before the public offer opens, SEBI’s framework allows a company to allot up to 60 percent of the institutional portion of the issue to what are called anchor investors, typically large mutual funds, insurance companies, and other qualified institutional buyers. These allocations are struck at a price the company and its bankers set based on institutional demand, and that price becomes the floor for the eventual retail price band. The idea is that seasoned institutional appetite, tested and priced a day ahead of the public tranche, offers a signal of sorts to smaller investors who lack the resources to independently value a company’s shares.
Because an anchor allocation could otherwise be used to create an artificial sense of momentum and then be dumped once trading begins, SEBI imposes lock-in periods on anchor shares, part of the allocation is locked for 30 days and the remainder for a longer period after listing. This restriction is meant to discourage anchor investors from treating the allotment purely as a short-term flip, and to align their holding period, at least partially, with the interests of investors who buy in through the regular retail or institutional windows once the issue formally opens.
Retail Quotas, Price Bands, and the Refund Mechanism
Retail investors are guaranteed a minimum portion of every mainboard IPO, currently not less than 35 percent of the issue under SEBI’s rules, ring-fenced from the institutional and non-institutional categories so that retail demand cannot be crowded out by larger players competing for the same shares. Bids must fall within a disclosed price band, and retail applicants typically bid at the cut-off price, agreeing to accept whatever final price is discovered through the book-building process rather than naming their own figure.
To reduce the risk that an investor’s funds are tied up or misused before allotment, SEBI mandated the Application Supported by Blocked Amount (ASBA) process, under which the bid amount is blocked in the investor’s own bank account through the UPI or ASBA mechanism rather than transferred upfront. If shares are not allotted, or only partially allotted, the blocked amount is released automatically rather than requiring a separate refund claim. Combined with mandatory disclosure of subscription figures across investor categories in real time during the bidding window, this structure is designed to give retail investors visibility into demand dynamics and control over their own funds throughout a process that, in earlier decades, was considerably more opaque and slower to unwind when applications went unfilled.