IPO Allotment Process in India: Retail, NII and QIB Quotas, Lottery Rules and How to Improve Your Chances

The IPO allotment process is the step many first-time applicants find confusing, because a bid does not guarantee shares. When demand exceeds supply, only some applicants get an allotment, and the method depends on the investor category.

This guide explains the quotas, how the lottery works for retail investors, how other categories are treated and what practical steps help you avoid rejection.

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How the IPO Allotment Process Works

1. The issue closes and the registrar collects all bids from the exchanges and banks.
2. Invalid bids, such as those with wrong details or insufficient funds, are removed.
3. Valid bids at or above the final issue price are grouped by category.
4. The registrar checks how many times each category is subscribed.
5. The basis of allotment is finalised with the exchange and shares are credited to demat accounts.
6. Refunds or unblocking of UPI mandates follow for unsuccessful applicants.

The whole sequence usually completes within a few working days after the issue closes, and the allotment status becomes visible on the registrar's website and on your broker app.

Investor Categories and Their Quotas

Category	Typical quota in book-built IPO	Who applies	Allotment method if oversubscribed
Retail individual investors (RII)	At least 35%	Bids up to Rs 2 lakh	Lottery, usually one lot per winner
Non-institutional investors (NII)	At least 15%	Bids above Rs 2 lakh	Proportionate, with sub-categories
Qualified institutional buyers (QIB)	Up to 50%	Mutual funds, banks, insurers and similar	Proportionate or discretionary within rules

Within the NII category, small NII bids between Rs 2 lakh and Rs 10 lakh get one third of the quota, and bids above Rs 10 lakh get the rest. Quotas differ in some issue structures, so confirm the split in the offer document.

IPO allotment follows the same logic across issues. The registrar checks how many times each category was subscribed, and the allotment for that category is pro-rata when demand is higher than the shares reserved. In the retail category the allotment process turns into a lottery, because one lot is the smallest unit that can be given. An oversubscribed issue is where the process matters most, and the basis of allotment published after the close shows exactly how each category was treated.

How the Retail Lottery Works

When the retail category is oversubscribed, the registrar cannot give every applicant even one lot. A computerised lottery then picks winners from all valid applications. Each winner usually receives one lot, and the lottery continues until the reserved shares are used.

This is why applying for more lots does not raise your chance of allotment in an oversubscribed retail issue. One valid application per PAN counts the same as ten lots in the draw, though a bigger bid ties up more money.

Many applicants assume IPO allotment is random for everyone, but only the retail category uses a lottery. IPO allotment for larger bids is proportionate, so a bigger bid can receive more shares there. Understanding how IPO allotment differs by category helps you choose the right bid size.

Why Applications Get Rejected

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• The UPI mandate was not approved in time on the bank app.
• Bank balance was lower than the bid amount when the funds were blocked.
• Details in the application did not match the demat or PAN records.
• More than one application was submitted from the same PAN, which can be treated as a duplicate.
• The bid was below the final issue price.

The allotment of shares also fails when a bank mandate is declined after the issue closes. A clean record of past IPO applications does not help, because the allotment lottery treats every valid application alike. Check how the allotment of shares worked in earlier issues of the same size, since the allotment lottery results in popular issues show how rare a win can be.

Practical Steps to Improve Your IPO Allotment Chances

No method guarantees an allotment, but some steps reduce the chance of avoidable rejection. Apply early, since last-minute rush can lead to technical errors. Approve the UPI mandate promptly and keep enough balance in the same account.

Bid at the cut-off price if you accept whatever final price is set within the band. Retail investors have this option, and it avoids a bid being invalid because it fell below a higher final price. Keep applications in your own name, and do not use someone else's PAN.

Remember that a stock market rally, such as a strong day for the Nifty 50, tends to raise subscription numbers, which lowers the odds of an allotment even further. The final decision should still depend on the company's business and valuation.

Better IPO allotment chances come from avoiding errors, not from tricks. A valid application, a timely UPI approval and accurate demat details keep your bid in the pool, and they matter more than the number of lots. Applying through several family accounts, each with its own PAN, can raise the household's IPO allotment chances, since every valid application gets its own entry in the draw. Bidding at the cut-off price is the simplest way to avoid a rejected bid.

How to Check Your Allotment Status

After the basis of allotment is finalised, you can check status on the registrar's website using your application number, PAN or demat details. The exchange websites also offer a status page. If you receive shares, they appear in your demat account by the listing date, and unsuccessful applicants get the blocked money released.

Once the allotment process ends, your IPO allotment status appears on the registrar website. If the IPO allotment shows zero shares, the blocked money is released, and if shares are allotted, they reach your demat account before listing. The whole allotment process usually finishes within a few working days of the close.

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Conclusion

The IPO allotment process is a fixed sequence: valid bids are grouped by category, subscription is checked and shares are allotted by lottery for retail or proportionately for larger categories. A bid never guarantees shares.

Focus on what you control, which is a clean, timely application, and decide on the company's merits and not on the grey market buzz.

Frequently Asked Questions

How are shares allotted in an oversubscribed IPO?

Ans. In the retail category, a computerised lottery picks winners and each usually receives one lot. In the NII and QIB categories, shares are allotted proportionately, with sub-category rules for small and big NII applicants.

Does applying for more lots improve allotment chances?

Ans. In an oversubscribed retail IPO, usually not. The lottery treats each valid application as one entry, so applying for more lots mainly blocks more money. Bids in the NII category are treated differently, because bigger bids there can receive more shares.

What is the retail investor limit in an IPO?

Ans. A retail individual investor can bid for up to Rs 2 lakh per PAN in a single IPO. Bids above that amount fall under the non-institutional category, which has a different allotment method.

What does bidding at the cut-off price mean?

Ans. It means you agree to pay whatever final price is fixed within the price band. Retail investors can use this option, and it helps ensure that the bid is not invalid because it fell below the final price.

Why was my IPO application rejected?

Ans. Common reasons are an unapproved UPI mandate, insufficient funds, mismatched PAN or demat details, duplicate applications from one PAN and a bid below the final issue price. Check the rejection reason on the registrar's site.

How long does it take to receive IPO shares after the issue closes?

Ans. The basis of allotment is finalised within a few working days after closing, and shares are credited to the demat account before listing. Unsuccessful applicants get their blocked amount released around the same time.

Can I apply for an IPO from multiple demat accounts?

Ans. Multiple applications from the same PAN are not allowed and can lead to rejection. Family members can apply in their own names with their own PAN, but each application must be genuine and in the applicant's own name.