Every company that goes public in India hands over a significant part of that process to its investment bank. Not just the paperwork. The pricing strategy, the investor conversations, the SEBI back-and-forth and what happens to the share price in the first month after listing. The investment bank’s role in IPO in India is the difference between a well-subscribed issue that holds post-listing and one that tanks on Day 2 and becomes a cautionary tale.
India has seen some of its busiest IPO years ever, with SEBI tightening disclosure requirements, increasing scrutiny on SME IPOs and anchor investor norms being revised. The role of investment banking in IPO transactions has only gotten more demanding because of this. Banks are now expected to do more detailed pre-filing work, more transparent risk disclosure and more active post-listing monitoring than even five years ago.
Comprehensive Summary
- Investment bank role in IPO: The bank runs the entire IPO, from restructuring the company months before filing to stabilising the share price after the listing day.
- BRLM selection: Companies pick their Book Running Lead Manager on sector track record and investor network depth, not on fee alone.
- DRHP and SEBI: The bank files a Draft Red Herring Prospectus with SEBI and navigates every query that comes back before the issue can open.
- Price band logic: Valuation uses DCF, peer comparisons and precedent deals together, then the band is stress-tested with institutional buyers before retail opens.
- Underwriting commitment: The bank absorbs unsold shares in a firm commitment structure, which gives the issuing company certainty on the capital it will raise.
- Greenshoe mechanism: Post-listing, the bank can buy back shares in the open market using greenshoe proceeds to prevent the price from falling below the issue price in the first 30 days.
Key Takeaways
- The investment bank’s role in IPO in India runs from 12 to 18 months before filing through 30 days post-listing and every major decision, from valuation to investor targeting, goes through the bank.
- SEBI has tightened the review timelines mean investment banks now have to file near-complete DRHPs on the first attempt, with much less room for back-and-forth on disclosures.
- The greenshoe option is a post-listing tool most retail investors have never heard of and it is the mechanism through which the investment banking role in IPO extends well beyond the listing date.
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What Is an Investment Bank in Simple Terms
A regular bank takes your money, keeps it and lends it to someone else. An investment bank does something different. It connects companies that need capital with investors who have it and it earns its fee by managing that transaction end-to-end.
In India, SEBI-registered merchant bankers like Kotak Mahindra Capital, ICICI Securities, Axis Capital and JM Financial do the bulk of domestic IPO work. For larger deals or cross-border listings, global banks like Goldman Sachs and Morgan Stanley come in alongside them. The term “merchant banker” is what SEBI uses in its regulations, but the functions are those of a full investment bank.
How the IPO Process Works in India
The process is sequential and regulated. Each step has a mandatory timeline and missing one can delay the entire listing by months.
SEBI cut its own review timeline from 75 days to 30 working days for most standard filings. That sounds like good news, but it means investment banks now have to submit near-complete DRHPs the first time. SEBI is issuing fewer back-and-forth clarifications and more outright objections if the filing is not tight.
Stages from Filing to Stock Exchange Listing
- Pre-IPO advisory and company restructuring (6 to 18 months before listing)
- Due diligence across legal, financial and operational areas
- DRHP drafted and filed with SEBI
- SEBI review and observation letter (within 30 working days as of 2026)
- Roadshow, anchor investor allocation and issue opening
- Subscription window (three days for most issues)
- Allotment, refunds and listing on BSE or NSE
Who Are the Key Parties in an Indian IPO
| Party | What They Actually Do |
| Book Running Lead Manager | Owns the full process from DRHP to listing |
| Registrar to the Issue | Processes applications and handles allotment |
| Legal Counsel | Drafts agreements and keeps the filing SEBI-clean |
| Statutory Auditors | Sign off on the financials going into the DRHP |
| Underwriters | Commit to absorbing shares if the issue is not fully subscribed |
| BSE or NSE | Approve the listing and host the trading |
How a Company Selects Its Lead Investment Bank
This decision matters more than most founders realise. A bank with great credentials in FMCG will not necessarily run a strong IPO for a defence tech company. Investor relationships are sector-specific.
What Is a Book Running Lead Manager (BRLM)
The BRLM is the lead manager who carries the legal and operational responsibility for the issue. Large IPOs often have two or three BRLMs splitting the investor coverage across categories. SEBI caps the number of BRLMs based on issue size to keep accountability clear.
Criteria Companies Use When Choosing a BRLM
- Past IPOs in the same sector and how those stocks performed post-listing
- The depth of their QIB relationships, specifically which mutual funds and FIIs they can reliably bring in
- Quality of in-house research coverage on the sector
- Ability to manage the SME IPO versus the mainboard route if there is a choice to be made
- Fee and whether there is meaningful skin in the game through underwriting commitment
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Pre-IPO Advisory: Where the Investment Bank Begins
The principal role of investment banks in IPO preparation is not visible to the public. Most of it happens in private, months before any SEBI filing is made.
Restructuring the Company Before Filing
SEBI and institutional investors both look at corporate structure before anything else. Related party transactions that are not at arm’s length, complex holding company arrangements, or any pending regulatory approvals create friction in the filing process. The bank advises the company on which entities to merge, which transactions to restructure and what the group structure should look like before the DRHP goes in.
A trend worth noting: SEBI has been particularly aggressive about flagging promoter-related party transactions in SME IPO filings. Banks advising smaller companies now spend considerably more time on this step than they did even two years ago.
Setting the IPO Timeline and Capital Structure
The bank helps the company decide how much of the issue should be a fresh issue (new shares raising new money) and how much should be an offer for sale (existing shareholders exiting). These two components have very different tax treatments and very different signals to the market. A high OFS portion with no fresh issue sometimes reads as promoters cashing out, which institutional investors flag quickly.
Due Diligence: Verifying the Company’s Financials
This is the part of the process that takes the longest and creates the most friction between the company and the bank.
Legal, Financial and Business Due Diligence
Financial due diligence means going through three to five years of audited accounts and checking whether the revenue recognition policy, provisioning approach and any restatements are consistent. Legal due diligence looks at pending litigation, regulatory licences and whether all intellectual property is properly held by the entity going public. Business due diligence is more qualitative, covering customer concentration, competitive moats and whether the management’s projections are grounded in anything real.
How Risk Factors Are Identified and Disclosed
The risk factors section of a DRHP is not boilerplate. SEBI reads it carefully. If the bank discloses a risk too vaguely, SEBI will send back a query asking for specifics. If a material risk is not disclosed at all and comes out after listing, both the company and the BRLM face liability. Banks now use structured templates that map every business risk to its disclosure requirement under ICDR regulations.
Valuation: How Investment Banks Price an IPO
Pricing is where the investment banking role in IPO gets contested most often, because neither the company nor the investors are fully neutral.
DCF, Comparable Company and Precedent Analysis
No bank uses one method in isolation. All three are run together and the outputs are cross-checked:
| Method | What It Tells You |
| DCF | The intrinsic value is based on the company’s own projected cash flows |
| Comparable Company Analysis | Where peers are trading and what multiples the market is currently giving similar businesses |
| Precedent Transactions | What buyers and investors paid in past IPOs or acquisitions in the same space |
The bank then builds a valuation bridge that explains where each method lands and why the recommended price band is where it is.
How the Price Band Is Decided
Before the price band goes public, the bank runs it past anchor investors in pre-roadshow conversations. Anchor investors must be allocated shares at least one day before the issue opens and their response is a real signal. If large institutions push back on the top of the band, the band gets revised downward. This process has become more rigorous in 2026 because several high-profile IPOs in 2024 and 2025 saw sharp post-listing corrections after pricing at the very top of the band with shallow anchor demand.
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Drafting the DRHP and Filing with SEBI
The DRHP is the company’s first formal conversation with the market and every word in it is the bank’s responsibility.
What Goes Inside a Draft Red Herring Prospectus
A DRHP runs anywhere from 300 to 700 pages, depending on the complexity of the business. The key sections include business overview and industry analysis, five-year financials, objects of the issue, risk factors, management discussion and analysis, related party transactions, promoter background and litigation history. The “objects of the issue” section, meaning how the company will spend the money raised, gets especially scrutiny from SEBI.
SEBI ICDR Regulations Investment Banks Must Follow
SEBI’s ICDR Regulations define eligibility criteria (the company must have net tangible assets of at least Rs 3 crore in the last three years for a standard filing), lock-in requirements for promoters, allotment proportions across QIBs, NIIs and retail investors and disclosure standards. The BRLM signs the due diligence certificate, which means they are legally certifying that the DRHP is accurate and complete.
Underwriting: The Risk Investment Banks Absorb
When people ask what role investment banks play in an IPO, underwriting is the answer that carries the most financial weight.
Firm Commitment vs Best Efforts Underwriting
In a firm commitment structure, the bank buys the entire issue from the company at the agreed price and then sells it to investors. If the issue is not subscribed, the bank holds the difference. In a best efforts arrangement, the bank commits only to trying its best. In practice, most mainboard IPOs in India combine both, with formal underwriting commitments from the BRLMs backed up by the QIB subscription demand that gets locked in before the retail window opens.
How Underwriting Protects the Issuing Company
For a company, underwriting removes the risk of a failed capital raise. In 2026, with equity markets sitting near all-time highs but global macro uncertainty far from settled, the value of a firm commitment structure is still very real.
Rate cuts from major central banks have been slower than markets expected and any sudden shift in FII sentiment can move Indian markets sharply in a short window.
Companies opening their subscription windows in this environment want certainty on the capital they will raise, regardless of what happens in the three days their issue is live.
Roadshows: Marketing the IPO to Investors
The roadshow is where the bank pitches the company to investors on its behalf and the quality of those conversations determines oversubscription levels.
Institutional vs Retail Investor Targeting
QIBs, which include mutual funds, insurance companies and foreign institutional investors, are targeted through private presentations, one-on-ones with senior management and sector-specific research notes. Retail investors come in through newspaper and digital advertising, broker outreach and the general media coverage that follows a well-known brand’s IPO announcement. HNIs (non-institutional investors) fall in between and banks manage them through their wealth management arms.
How Analyst Coverage Builds Investor Confidence
The bank’s in-house research team publishes IPO notes during the roadshow period. These are distributed to institutional clients and widely cited in financial media. A strong analyst note from a well-regarded research desk can meaningfully shift institutional demand. What most people do not know is that SEBI prohibits research analysts from making price projections in these notes during the active offer period. The note can cover the business and sector, but cannot say “this stock will reach Rs X.” Banks manage this line carefully.
Book Building and Price Discovery Explained
Book building is the mechanism through which the investment banks’ role in IPO in India becomes a live market function.
How Bids Are Collected and Evaluated
The subscription window typically runs for three days. QIBs bid at any price within the band, NIIs must bid at or above the cut-off price and retail investors can bid at the cut-off. All bids are submitted through the stock exchange’s electronic platform in real time, so the bank and the company can see demand levels live throughout the subscription period.
How the Final Issue Price Is Determined
After the window closes, the bank reviews the demand across all price points and identifies the cut-off: the point where cumulative demand equals or exceeds the total issue size. That becomes the issue price for all investors. In heavily oversubscribed issues, the cut-off typically falls at or near the top of the band.
Post-Listing: What Investment Banks Do After the IPO
The bank’s mandate does not end on listing day.
Price Stabilisation Through the Greenshoe Option
The greenshoe option allows the bank to issue up to 15% additional shares over the original issue size. The proceeds from those shares are held in a separate escrow. If the stock price falls below the issue price in the 30 days after listing, the bank uses that escrow money to buy shares from the open market and support the price.
If the price stays above, the bank closes the position and the extra proceeds go back to the company. This mechanism is most actively used in IPOs where the initial demand was strong, but post-listing selling pressure from anchor investors comes in after their 30-day lock-in ends.
Lock-In Periods and Post-Listing Obligations
Promoters are locked in for 18 months on a minimum 20% of pre-IPO holding. Anchor investors are locked in for 30 days. The bank tracks these timelines, flags any secondary sale requests to ensure they are within regulatory limits and supports the company with its post-listing quarterly disclosure requirements.
Why the Investment Bank Role in IPO India Matters
A company can have clean books, a strong business and a good story and still have a badly received IPO if the bank it picks cannot price it correctly, build real institutional demand, or handle the SEBI process without delays. The role of investment banking in IPO is not just procedural. It shapes how the market first perceives the company and that first perception tends to be sticky.
The banks that do the deepest pre-IPO work, spending the most time on restructuring, disclosure quality and investor targeting long before the roadshow begins, are the ones whose deals hold up post-listing. The ones that rush to file are the ones whose clients end up trading below issue price six months later.
Conclusion
The companies that plan their IPOs well treat the bank selection like hiring the most important advisor they will ever have. The BRLM they pick will price their business, pitch it to the country’s biggest investors and stand next to them in every conversation with SEBI. Getting that choice right and giving the pre-IPO process the 12 to 18 months it actually needs, is what separates IPOs that perform from ones that disappoint.
If you want to work on deals like these, understanding the full arc of an IPO process, from how the price band gets decided to how the greenshoe gets deployed, is where you start. A practical investment banking programme that covers live IPO modelling, capital markets, financial analysis and AI-driven research tools gives you the foundation to walk into these roles and actually contribute from Day 1.
FAQs on Investment Bank Role in IPO
What does an investment bank actually do during an Indian IPO?
They run the full deal. Valuation, SEBI filing, roadshow, book building, underwriting and post-listing price support all go through the lead manager.
What is underwriting in an IPO and how does it work in India?
The bank commits to buying whatever shares do not get subscribed. Most large mainboard IPOs pair this with QIB demand to cover the risk before retail even opens.
How do investment banks actually arrive at the IPO price band?
DCF, peer comparisons and past sector deals are run together, then the range gets tested privately with anchor investors before it goes public.
How much does a bank charge for managing an IPO in India?
Roughly 1% to 3.5% of total issue size, split across lead managers based on role and underwriting exposure. Complex deals can go higher.
Is a merchant banker the same as an investment bank in India?
For IPO work, yes. Merchant banker is just the SEBI licence name. The functions are identical to what an investment bank does in capital markets.
What does the investment bank do after the IPO closes?
Greenshoe execution for 30 days, lock-in monitoring for promoters and anchors and supporting the company on its first post-listing regulatory disclosures.
