What is IPO GMP (Grey Market Premium)?

IPO Grey Market Premium (GMP) is an unofficial cash premium over the issue price at which shares of an upcoming IPO trade before being officially listed on the stock exchange (BSE/NSE).

How is the estimated listing price of an IPO calculated?

Estimated Listing Price is calculated as: Upper Band Issue Price + Current Grey Market Premium (GMP).

What is the Kostak rate in IPO trading?

Kostak rate is the fixed profit amount paid to an IPO applicant for selling their application to a buyer prior to allotment, regardless of whether shares are allotted.

Why should I always select Cut-Off Price when bidding for an IPO?

Selecting the cut-off price ensures your bid automatically matches the final price discovered by the book-building process. If the issue discovers at the cap price and you entered a lower bid, your bid is instantly rejected and excluded from allotment.

What is the UPI mandate approval deadline on the last day of IPO bidding?

While official bidding on exchanges closes at 5:00 PM IST on Day 3, UPI mandate authorization requests can arrive until 5:00 PM or in some cases up to 6:00 PM. Authorizing your mandate before 5:00 PM ensures your bid is confirmed by your sponsor bank.

What should I do if my UPI mandate is not received in Google Pay or PhonePe?

Check the pending mandates section inside your UPI app directly rather than waiting for push notifications. If it does not appear within 20 minutes, cancel the application on your broker platform and re-apply using a BHIM UPI ID or net banking ASBA.

Can I revise my IPO bid after the UPI mandate is created?

Yes. You can edit your bid lots or price before 4:30 PM on the closing day. When you revise upwards, a fresh incremental mandate block is sent to your UPI app for confirmation.

Execution Guide 2026

How to Bid for an IPO via UPI: Mandate Timing & Cut-off Price Rules

Applying for an initial public offering in India using UPI 2.0 is fast and seamless, but minor mistakes like skipping the cut-off price or missing the mandate authorization window can disqualify an otherwise profitable bid. Here is how active investors navigate the bidding workflow.

The 4-Step UPI Bidding Lifecycle

STEP 1

Enter Demat & UPI ID

Log in to your discount broker (Zerodha, Groww, Angel One) and select the active issue. Input your correct VPA handle (e.g. @okhdfcbank, @ybl).

STEP 2

Tick 'Cut-Off Price'

Always check the cut-off price checkbox for retail bids. This binds your application to the final ceiling price discovered in book-building.

STEP 3

Authorize Auto-Debit Block

Open GPay, PhonePe, or BHIM. Approve the mandate request with your UPI PIN. Funds stay inside your savings account earning interest until allotment.

STEP 4

Debit vs Auto-Revocation

On basis of allotment day, successful bidders see the blocked amount debited. Unallotted applicants receive instant unblocking of funds.

Why Cut-Off Price is Mandatory for Retail Bids

When an IPO issues shares within a price band (such as ₹475 to ₹500), retail investors have the option to bid at a fixed price or choose the cut-off price. If an issue is heavily subscribed, the final offer price will inevitably be set at the top band (₹500). If you manually bid at ₹495, your application is technically valid but disqualified during allotment selection.

By monitoring real-time market trends and tracking live subscription demand before applying, bidders can observe whether qualified institutions (QIBs) are bidding at the upper cap. When institutional demand is strong, ticking cut-off price is the only way to safeguard your ticket.

Common UPI Mandate Errors & Quick Fixes

Error / Issue	Root Cause	Immediate Fix
Mandate Request Not Received	UPI sponsor bank congestion during peak hours	Go to UPI App > Profile > Autopay / Mandates; verify pending approvals manually.
Payment Limit Exceeded	UPI transaction limit capped below ₹5 Lakhs by bank	Use Net Banking ASBA directly if bidding above ₹2 Lakhs in sHNI category.
Insufficient Available Balance	Total savings account balance lower than lot requirement	Maintain minimum balance above the block value until allotment day.

Checking Allotment & Mandate Release

Once the issue closes, the registrar reconciles all exchange bids and prepares the allotment basis. To confirm whether your application was successful, visit the official registrar allotment tracking portal using your PAN or Application Number. If shares are allotted, your demat account receives credit on the subsequent business day, while the UPI block is converted into a settled debit.