IPO Bid Modification and Withdrawal: Changing or Cancelling Your Application Before Close

You applied for an IPO on day one, then the subscription numbers came in, or you read the red herring prospectus properly, or your budget changed. Can you go back? For most small investors the answer is yes. IPO bid modification and withdrawal are both allowed for retail bidders right up to the close of the issue, but the method, the deadline and the UPI step trip people up every single time. This guide walks through what SEBI’s rules actually say, how a change flows through your broker app and your bank, and the mistakes that leave money blocked for longer than it should be.

Who Is Allowed to Change an IPO Bid

Start with the category you’re bidding in, because the rules are not the same for everyone. Under the SEBI ICDR Regulations, 2018, a retail individual investor is an individual who bids for a value of not more than ₹2 lakh. Go above that and you’re in the non-institutional bucket.

Schedule XIII of the same regulations, which sets out the book building process, draws a sharp line:

• Retail individual investors may either withdraw or revise their bids until the closure of the issue.
• Qualified institutional buyers (QIBs) and non-institutional investors (NIIs) are not permitted to withdraw or lower the size of their bids at any stage of the issue.

That second point matters more than people think. If you’re an HNI who put in ₹10 lakh in the NII portion and the stock then gets panned by analysts, you’re stuck with that bid. The rule bars both withdrawing and lowering, so there’s no quiet exit. SEBI’s own ICDR FAQ says the same thing in plainer words for ASBA bids: QIBs and NIIs “are not eligible to withdraw their bids at any time.”

For a retail bidder, nothing is final until the issue closes. For an NII, the bid is effectively final the moment it’s placed.

If you want to understand why the categories exist in the first place, our explainers on the cut-off price option and on the ASBA and UPI application process cover the basics.

What You Can Change as a Retail Bidder

According to the SEBI FAQ on the ICDR Regulations, a retail investor can change or revise the quantity or the price in the bid, and the whole process of changing or revising has to be completed by the issue closing date. In practice, that gives you three levers:

1. Quantity. Add lots or drop lots, as long as you stay a valid application.
2. Price. Move a specific price within the band, or switch to cut-off. Cut-off is available only to retail individual investors, per Schedule XIII, and a cut-off bid stays valid at whatever price is finally discovered within the band.
3. Withdrawal. Cancel the whole bid.

What you can’t do is edit the bid on the UPI app itself. SEBI’s FAQ is explicit that the values in a UPI block request can’t be modified on the UPI application. Every change goes through the intermediary you applied with, whether that’s your broker app, your bank’s net banking IPO section, or a syndicate member.

How a Modification Actually Flows Through UPI

This is where most confusion lives. When you first bid through a broker app, a mandate request reaches your UPI app, you approve it with your UPI PIN, and the bank blocks the amount. When you modify, the process doesn’t tweak that old block in place. Here’s the sequence the SEBI FAQ describes:

1. You open the IPO order in the broker app (or approach the intermediary) and change quantity or price.
2. If the bid amount changes, you receive a fresh mandate block request with the revised amount.
3. You have to authorise that fresh request again by entering your UPI PIN. You’ll get a notification on the UPI app and an SMS.
4. Once it goes through, a confirmation appears in the UPI app.

Now the important bit. If you don’t approve the modification request, it lapses when it expires, and execution happens on the earlier approved mandate, which stays active on the original application. So ignoring the new mandate doesn’t cancel anything. It just leaves your old bid exactly as it was.

Ignoring a modification mandate is not the same as cancelling. Your original, approved bid keeps standing.

If you hit a technical error on the UPI app during a modification, the FAQ says you need to start a fresh modification request through the same intermediary.

The 5 PM Deadline on the Last Day

Every retail investor using UPI should have one time burned into memory. SEBI’s FAQ says modification requests can be acted upon before 5:00 pm on T, the issue closing day. Pending mandate requests sitting in your UPI app follow the same cut-off, and a mandate you never act on expires automatically on T at 5:00 pm.

Two practical consequences follow:

• Don’t leave a modification for the final hour. A mandate that reaches your phone a couple of minutes before five leaves you almost no room if anything goes wrong.
• Bid uploads happen only on working days, as the FAQ points out. A mandate may land on a holiday, but the bidding calendar runs on working days, so count those, not calendar days. We’ve covered how the bidding window is set and extended in our guide to IPO bidding period rules.

One more wrinkle for institutional-heavy issues: Schedule XIII lets an issuer close bidding by QIBs one day before the issue closes, provided the bidding period is at least three days for all categories and the red herring prospectus discloses it. That doesn’t change the retail deadline, but it explains why QIB demand numbers sometimes freeze a day early.

How to Withdraw an IPO Bid

Withdrawal is simpler than modification, but there are two routes depending on how you applied.

If you applied through a broker app with UPI

Go back to the same intermediary and cancel the bid. SEBI’s FAQ notes that intermediaries offering a web or mobile interface also provide the modification and cancellation option there. SEBI’s FAQ describes this as revoking the block request, and a mandate can be revoked during the issue period until closure. You don’t need your UPI PIN to revoke. Once the revoke goes through, the UPI app shows a success notification, the bank sends an SMS or notification about the unblock, and funds blocked against the bid are unblocked online.

There’s also a softer exit. If you placed a bid but never approved the mandate, you can simply decline it, even on the last day. And if you just let it sit, it expires at 5:00 pm on closing day.

If you applied through your bank (ASBA)

If you submitted the ASBA application to a bank, a self-certified syndicate bank in SEBI’s language, you approach that same bank with a duly signed letter citing your application number (and TRS number, if you have one). If the form went to a designated intermediary instead, you approach that intermediary. On a valid withdrawal, the bank deletes the bid from the exchange platform and unblocks the application money in your account.

If a revoke fails because of a technical error, the FAQ says you need to re-initiate it through the same intermediary, and the bank will unblock the funds through its offline mechanism. For what happens to blocked money after the issue closes, see our piece on the IPO refund process under ASBA and UPI.

The Mistake That Keeps Money Blocked

SEBI repeats this warning twice in the same FAQ, which tells you how often it happens: don’t approve a mandate block request after you’ve cancelled the bid on the exchange platform. Doing so delays the release of funds blocked in your bank account.

The usual story goes like this. You bid on Monday, change your mind on Tuesday and cancel in the broker app. On Wednesday a stale mandate notification is still sitting in the UPI app, and out of habit you tap approve. Now the bank has a block with no live bid behind it, and you’re waiting on an unblock that should never have been needed. If in doubt, open the broker app first and check the order status before you touch the UPI app.

A Worked Example

Let’s take a hypothetical issue. The company and numbers below are made up purely to show the mechanics.

• Price band: ₹180 to ₹190 per share
• Lot size: 78 shares
• One lot at the upper end: 78 × ₹190 = ₹14,820

Day 1. Ravi bids one lot at cut-off through his broker app. He approves the mandate, and ₹14,820 is blocked.

Day 2. He decides to go for two lots. He modifies the order in the app. A fresh mandate for ₹29,640 (2 × ₹14,820) arrives in his UPI app, and he approves it with his PIN. His bid is now two lots at cut-off.

What if he had ignored that second mandate? The modification would lapse, and his original one-lot bid for ₹14,820 would stand.

How high can he go and stay retail? Thirteen lots at the upper band work out to 13 × ₹14,820 = ₹1,92,660, which is within ₹2 lakh. Fourteen lots would be ₹2,07,480, above the limit, and that’s no longer a retail-sized application. Before you add lots, check the maximum your app allows in the retail category.

Day 3, 3:00 pm. Ravi reads the risk factors again and decides he doesn’t want the stock at all. He cancels the bid in the broker app before the close. No PIN is needed, the block is revoked and ₹29,640 is unblocked. Had he been bidding ₹5 lakh in the NII category, none of this would be possible. He couldn’t have cut or cancelled it.

A Quick Checklist Before You Change Anything

1. Confirm your category. Retail can revise and withdraw. NII and QIB bids can’t be withdrawn or lowered.
2. Use the same intermediary. Changes and cancellations go through whoever accepted your original application, not the UPI app.
3. Approve the fresh mandate if the amount changed. Without it, your old bid stays.
4. Watch the clock. Get it done well before 5:00 pm on the closing day.
5. Don’t approve stale mandates after cancelling. It delays your money.
6. Check the app and the bank SMS. Look for the order status in the broker app and the block or unblock message from the bank.

If you’re still finding your feet with primary markets, our pillar guide to IPO investing in India puts all these pieces together, from reading the prospectus to listing day.

Changing your mind on an IPO isn’t a failure of discipline. Often it’s the opposite: new information arrived and you acted on it. The rules give retail investors room to do that. They just expect you to do it through the right door, before the bell.

Disclaimer: This article is for educational purposes only and is not investment advice. The company, prices and lot sizes in the example are hypothetical. Regulations and intermediary processes change; check the latest SEBI text and the offer document, and consult a SEBI-registered adviser before investing.