The most misunderstood part of an Indian IPO is not the valuation. It is what happens after the money is blocked.
For retail applicants in an oversubscribed issue, allotment is a lottery at the single-lot level, not a queue and not a proportionate share, which is why a five-lot application and a one-lot application can both come back empty while a neighbour's single lot lands.
The three categories do not work the same way
An issue is split into reserved portions, and the allotment method differs in each.
The retail method is deliberately egalitarian. The intention is that a small applicant has the same shot at one lot as a larger one, which is a policy choice rather than a market outcome.
Why more lots does not mean better odds
Work through the arithmetic. If the retail portion is subscribed three times, there are roughly three applicants for every available lot, so the registrar allots the minimum lot to as many applicants as the shares allow and draws lots among the rest.
At that point the size of an individual application stops mattering, because nobody is receiving more than the minimum. Applying for five lots only changes the outcome if the retail portion is undersubscribed, in which case everyone gets what they asked for anyway.
There is one real lever, and it is legal rather than clever. Each PAN may submit one application, so a household with three eligible adults holding separate PANs and demat accounts has three entries rather than one. Splitting a single person's application across accounts is not the same thing, and duplicate applications against one PAN are liable to be rejected.
What happens to your money
Nothing leaves the account. Under ASBA and the UPI mandate flow, the amount is blocked in your bank account and continues to earn interest where applicable, and it is debited only against shares actually allotted.
The timeline is short by design. For the National Stock Exchange issue, which runs from 17 to 21 September 2026, allotment is expected on 22 September and listing on 24 September, with blocks released for unsuccessful applicants around the allotment date. Our NSE IPO piece covers that issue, and how to apply for an IPO covers the application mechanics.
What subscription numbers do and do not tell you
Day-by-day subscription figures describe demand, not your odds, until the issue closes. Institutional bids in Indian IPOs cluster on the final day, so a QIB portion that looks thin on day one frequently is not thin at the close.
The retail multiple is the number that decides retail odds, and it is the one worth watching rather than the headline overall figure, which institutional demand can lift while retail stays undersubscribed or the other way round.
A worked example
Take a retail portion of 100,000 lots that receives 400,000 applications. Every applicant wants at least one lot, so the registrar cannot satisfy more than a quarter of them, and the draw runs among all 400,000 for those 100,000 single lots. An applicant who bid for six lots is in the same draw as one who bid for a single lot, with the same one-in-four chance, and neither gets six.
Now take a retail portion subscribed 0.8 times. Every applicant receives the full quantity applied for, and the bid size is the only thing that decides what you end up holding. Those are the only two regimes, and the subscription figure at close tells you which one you are in.
After allotment
Shares are credited to the demat account before listing, and the listing price is discovered through a pre-open call auction on the listing day rather than being set by the company. A grey market premium quoted before listing is an unofficial, thinly traded indication and frequently wrong, which our GMP explainer sets out in detail.
The part worth internalising is that the allotment system is designed to spread a scarce asset widely, not to reward the largest applicant. For a retail investor that is usually good news, and it makes the decision about whether to apply at all more important than any tactic around how much to apply for.