Initial Public Offering (IPO) in Indian Markets

What an IPO Actually Is in the Indian Market

An Initial Public Offering (IPO) is the event where a privately held company sells its shares to ordinary investors for the very first time and gets those shares listed on a stock exchange such as the National Stock Exchange (NSE) or BSE. Before the IPO, the company is owned by founders, early employees, and private investors like venture capital and private equity funds. After the IPO, anyone with a demat account and a UPI ID can buy and sell the shares in the open market. The company uses the IPO either to raise fresh money for growth (a fresh issue) or to let existing shareholders cash out part of their holding (an Offer for Sale, or OFS), or a mix of both.

For a trader, the IPO matters for two distinct reasons. First, you can apply during the subscription window and hope for an allotment that you sell for a quick listing gain. Second, once the stock is listed, it becomes a normal equity you can trade, and for large issues it may later get a derivatives (futures and options) contract on the NSE. The whole process in India is governed by the SEBI (Issue of Capital and Disclosure Requirements) Regulations, which set out exactly how the company must disclose information and how shares get allotted.

It is worth being precise about the language. The issue price or cut off price is what you actually pay per share during the IPO. The listing price is where the stock opens on its first trading day. The difference between the two, expressed as a percentage, is the listing gain (or listing loss). A company that raises money does not always reward IPO applicants. Plenty of well known issues have listed flat or below their issue price, so the popular idea that an IPO is free money is simply wrong.

A Real Recent Example: Bajaj Housing Finance (September 2024)

The cleanest recent example of how a large mainboard IPO works is Bajaj Housing Finance, which opened on 9 September 2024 and listed on 16 September 2024. The price band was Rs 66 to Rs 70 per share, and the lot size was 214 shares. A retail investor applying for one lot at the top of the band paid 214 multiplied by Rs 70, which is Rs 14,980. That sits inside the SEBI rule that one retail lot must be worth between roughly Rs 14,000 and Rs 15,000, so retail applicants effectively bid for a single lot near that ceiling.

The issue raised about Rs 6,560 crore and was hugely in demand. Overall subscription came in near 64 times, with the Qualified Institutional Buyer (QIB) portion subscribed over 200 times and even the retail portion subscribed around 7 times. When a retail category is oversubscribed several times over, not everyone who applies gets shares. Allotment to retail is done by a computerised lottery for the minimum lot, so applying for ten lots does not improve your odds the way it would in a proportionate institutional allotment.

On listing day the stock opened at Rs 150 on the NSE against the Rs 70 issue price. That is a listing gain of roughly 114 percent. An applicant who received one lot of 214 shares at Rs 70 (cost Rs 14,980) and sold the entire allotment at Rs 150 would gross 214 multiplied by Rs 150, which is Rs 32,100, before charges and tax. We work through the exact rupee profit, brokerage, STT, and tax in the section below. The key honest point: this was an unusually strong listing. Many 2024 and 2025 issues listed near or below issue price, so do not treat 100 percent plus pops as the norm.

Worked Example: Real Rupee Profit, Charges and Tax on a Listing Gain

Let us run the Bajaj Housing Finance numbers fully, with illustrative but realistic charges, so you see the actual take home figure rather than the headline percentage. Assume you were allotted one lot of 214 shares at Rs 70, so your invested amount was 214 multiplied by Rs 70, which is Rs 14,980. On listing day you sold all 214 shares at Rs 150, giving a sale value of 214 multiplied by Rs 150, which is Rs 32,100. The gross gain is Rs 32,100 minus Rs 14,980, which is Rs 17,120 before any charges.

Now subtract the real costs of selling listed equity for delivery. Securities Transaction Tax (STT) on a delivery sell is 0.1 percent of the sell value, which is 0.001 multiplied by Rs 32,100, about Rs 32. A typical discount broker charges zero brokerage on delivery (some charge a flat Rs 20, here we assume zero). Exchange transaction charges, SEBI turnover fee, and stamp duty together come to only a few rupees on this size, say roughly Rs 5. GST at 18 percent applies on brokerage and transaction charges, which is negligible here because brokerage is zero. So total charges are approximately Rs 37, leaving a net pre tax gain of about Rs 17,083.

Because you sold on listing day, the holding period is under 12 months, so this is a Short Term Capital Gain (STCG) on equity, taxed at 20 percent under the post July 2024 rules. The tax is 0.20 multiplied by roughly Rs 17,083, which is about Rs 3,417, plus 4 percent cess on the tax. Your final take home is roughly Rs 13,600 on an investment of Rs 14,980. If instead you had held the shares for more than 12 months and then sold, the profit would be a Long Term Capital Gain (LTCG) taxed at 12.5 percent, but only on the amount above the Rs 1.25 lakh yearly LTCG exemption, which makes small long term gains effectively tax free until you cross that limit. These figures are illustrative and rounded.

How the IPO Process Works Step by Step

The journey from private company to listed stock follows a fixed regulatory path. The company first appoints merchant bankers (also called Book Running Lead Managers) who prepare the Draft Red Herring Prospectus (DRHP) and file it with SEBI. SEBI reviews it and issues observations, after which the company files the final Red Herring Prospectus (RHP) with the price band. The issue then opens for a window of usually three working days, during which retail investors, High Net worth Individuals (the Non Institutional category), and QIBs place bids through the ASBA mechanism, where money is blocked in your bank account via UPI rather than debited up front.

After bidding closes, allotment is finalised, typically within a day or two under the current T plus 3 listing timeline that SEBI shortened so shares now list just three working days after the issue closes. If you get an allotment, the blocked money is debited and shares hit your demat account. If you do not, the block is released. The stock then lists and starts trading. The reserved allocation buckets are set by SEBI rules: for a book built issue with profits, at least 35 percent is reserved for retail, 15 percent for the Non Institutional Investor category, and up to 50 percent for QIBs.

• Company appoints merchant bankers and files the DRHP with SEBI.
• SEBI issues observations, then the RHP is filed with the price band and lot size.
• Issue opens for about three working days; investors bid via ASBA and UPI.
• Allotment is finalised; retail oversubscription is settled by lottery for one lot.
• Shares list on NSE and BSE under the T plus 3 timeline, three working days after close.

Mainboard IPO Versus SME IPO: A Critical Difference

India runs two parallel IPO markets and confusing them is a common and expensive mistake. A mainboard IPO, like Bajaj Housing Finance or Hyundai Motor India, lists on the main NSE and BSE platforms, has a minimum issue size in hundreds of crores, and the minimum retail application is a single lot worth about Rs 14,000 to Rs 15,000. An SME IPO lists on the dedicated NSE Emerge or BSE SME platform, is much smaller, and crucially has a much larger minimum application size, often Rs 1 lakh to Rs 1.5 lakh or more, because SEBI deliberately keeps small retail investors out of riskier small company issues.

SME IPOs in 2023 and 2024 saw extreme grey market frenzy and some listed at multiples of issue price, which drew in inexperienced buyers. SEBI and the exchanges responded in 2024 and 2025 by tightening rules, adding a listing day price cap and stricter disclosures, after several SME stocks crashed once the hype faded. The practical lesson is that SME IPOs carry far higher risk, far lower liquidity, and a much bigger minimum cheque, so they are not a like for like substitute for mainboard issues even though both are called IPOs.

Pricing: Book Building Versus Fixed Price

Almost every large Indian IPO uses the book building method. Instead of a single fixed price, the company announces a price band, for example the Rs 66 to Rs 70 band of Bajaj Housing Finance. Investors place bids anywhere within that band, and the final cut off price is discovered from demand. Retail investors almost always tick the cut off price option, which means they agree to pay whatever final price is fixed, usually the top of the band for a hot issue. This market driven discovery is why heavily demanded IPOs price at the ceiling.

The older fixed price method, where a single price is printed in the prospectus before the issue opens, is now rare for large issues and mostly seen in smaller offerings. With fixed price you know the exact cost up front but you lose the price discovery benefit, and demand is only visible at the very end. For a trader, the book built band tells you the company and its bankers think the fair value sits in that range, and the grey market then signals whether the street agrees.

Subscription, Allotment and the Anchor Book

Subscription is simply total demand divided by shares on offer. If a category is subscribed 64 times, investors bid for 64 times the shares available there. The numbers are split by category, and the QIB figure is usually the most informative because institutions commit real research and large capital. Just before the issue opens to the public, the company allots shares to anchor investors, large institutions like mutual funds and insurers, who get up to 60 percent of the QIB portion one day early and must hold at least part of that allotment for 30 to 90 days. A strong anchor book full of respected names is a confidence signal for the wider issue.

On allotment, the rules differ by category. When the retail portion is oversubscribed, SEBI requires that as many applicants as possible get at least one lot, settled by a computerised lottery, so a small applicant has the same per application chance whether they applied for one lot or, well, they can only apply for the minimum to maximise odds anyway. The Non Institutional and QIB categories get proportionate allotment, where larger bids receive proportionally more shares. This is why retail applicants chasing a hot IPO often get nothing, while a big institution always gets its proportional slice.

• Subscription equals total bids divided by shares on offer, shown live by category on NSE and BSE.
• Anchor investors get up to 60 percent of the QIB portion one day early with a lock in.
• Retail oversubscription is settled by lottery, so you either get one full lot or nothing.
• QIB and Non Institutional categories receive proportionate allotment based on bid size.

Grey Market Premium: A Useful but Unregulated Signal

The Grey Market Premium (GMP) is an unofficial, off exchange price at which IPO applications or soon to list shares change hands before the official listing. If an issue priced at Rs 70 shows a GMP of Rs 75, the grey market is implying a listing around Rs 145, hinting at a strong pop. GMP is genuinely useful as a real time read of sentiment, and for Bajaj Housing Finance the grey market correctly pointed to a very strong listing. But it is run by private dealers, is not regulated by SEBI, has no settlement guarantee, and can swing wildly in the final hours before listing.

Treat GMP as one input, never as a promise. There have been issues where a fat GMP collapsed and the stock listed flat or below issue price, leaving late GMP buyers and over excited applicants disappointed. Combine GMP with the fundamentals in the RHP, the QIB subscription figure, the quality of the anchor book, and the overall market mood. A bull market lifts most listings while a nervous market can sink even a decent company.

Taxes on IPO Gains: Get This Right

How your IPO profit is taxed depends entirely on holding period, and the rules changed in the July 2024 Budget. If you sell listed shares within 12 months, including selling on listing day, the profit is a Short Term Capital Gain taxed at a flat 20 percent (plus 4 percent health and education cess). If you hold for more than 12 months and then sell, it is a Long Term Capital Gain taxed at 12.5 percent, but only on the amount above the Rs 1.25 lakh combined LTCG exemption you get each financial year across all listed equity and equity mutual funds.

Most people who chase listing gains are therefore in the 20 percent STCG bucket, which is why the take home in our worked example was meaningfully below the headline gain. Also remember that Futures and Options trading is taxed as business income at your slab rate, not as capital gains, which matters later if the listed stock gets an F&O contract and you start trading its derivatives instead of holding shares. Keep your contract notes, because STT paid on equity sells is a deductible cost and the broker statement is your proof at filing time.

• Sold within 12 months, including listing day: STCG at 20 percent plus 4 percent cess.
• Held over 12 months: LTCG at 12.5 percent, only on gains above Rs 1.25 lakh per year.
• F&O on the listed stock is business income at your slab rate, not capital gains.
• STT and exchange charges reduce your net gain, so always compute the after charges figure.

Common Mistakes IPO Applicants Make

The single biggest mistake is applying purely on hype and grey market chatter without opening the RHP. The prospectus lays out the company financials, the risk factors, how the money will be used, and how much of the issue is fresh capital versus existing owners cashing out. A heavy Offer for Sale, where promoters and early investors sell down rather than the company raising fresh growth money, is worth noticing. Another frequent error is assuming a high subscription guarantees a listing pop. It raises the odds of demand but says nothing certain about price, as several oversubscribed issues have still listed flat.

On the mechanics side, retail investors waste money applying for multiple lots in an oversubscribed issue, since allotment is by lottery on one lot, and they sometimes use multiple applications from the same PAN, which gets rejected. Applying at less than the cut off price in a hot issue almost guarantees no allotment. And many forget the tax drag, mentally booking the full headline gain when 20 percent STCG and charges will shave it down. Discipline beats excitement here, just as it does in active trading.

Sources and Further Reading

For authoritative data and current rules, refer to SEBI (Securities and Exchange Board of India), NSE India and SEBI Investor Education. Subscription and listing data should be confirmed on the NSE and BSE issue pages and the company RHP. Always verify current price bands, lot sizes, charges and tax rates on the official source before you apply or trade. All numeric examples here are illustrative and past listing gains do not predict future results.

Sources and Further Reading

For authoritative data and further reading on this topic, refer to SEBI (Securities and Exchange Board of India), NSE India and SEBI Investor Education. Always confirm current rules, rates and contract specifications on the official source before you trade.