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For a resident retail investor, the best demat account for an Indian IPO is usually the one that gives you a reliable application screen, supports the payment route you actually use, displays UPI-mandate status clearly, and makes your demat details easy to verify. Allotment is decided by the issue process—not by the broker—so a claim that one app improves allotment odds should not drive your choice.
In the documented workflows available today, Zerodha supports both UPI ASBA and bank-net-banking ASBA, while Groww’s ASBA instructions emphasize entering the correct 16-digit demat account number. Your final choice should also account for annual maintenance charges, depository-participant fees, selling costs after allotment, support quality and compatibility with your own bank and UPI app.
What makes a demat account good for IPO applications?
An IPO application is a chain of dependent steps: the broker or intermediary submits your bid, your bank authorises a block through UPI or ASBA, the registrar processes the issue, and allotted shares are credited to the demat account you entered. The best account is therefore the one that reduces mistakes and makes each step visible.
- Complete payment coverage: UPI ASBA should be available for eligible retail bids, with bank-net-banking ASBA as a fallback when a mandate fails or the bid is larger.
- Accurate identity data: PAN, demat number, depository and DP details should be prefilled or easy to verify before submission.
- Clear status tracking: You should be able to distinguish an application that was submitted from one awaiting a UPI mandate, accepted, rejected or cancelled.
- Predictable total cost: Compare account maintenance, depository-participant charges, brokerage for selling allotted shares and any IPO-specific fee. A free IPO application does not make the entire account free.
- Reliable bank compatibility: Your own bank account and UPI application must support the mandate flow and deliver notifications promptly.
- Useful recovery support: Help pages and escalation channels matter when a mandate expires, a duplicate application is detected or blocked funds are not released on schedule.
No broker can guarantee an allotment. In a heavily subscribed issue, applications in the same category are allocated under the issue’s basis-of-allotment rules. The account affects execution quality, not your probability under those rules.
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Documented broker capabilities you can verify
The available official instructions illustrate why workflow details matter more than advertising. Zerodha’s current IPO documentation supports UPI ASBA and bank-net-banking ASBA. Its guidance says an individual may use UPI ASBA when the application value is below ₹5 lakh; for an application above ₹5 lakh, it directs the investor to ASBA. The same guidance says one UPI ID cannot be reused for multiple IPO applications, even when the investor has more than one demat account.
Zerodha’s application guide requires the UPI ID and linked bank account to belong to the applicant and allows up to three bids in the documented workflow. Its IPO terms state: “There are no platform or processing charges for applying for an IPO through Zerodha.” That statement covers the IPO application route only; it does not establish the broker’s annual maintenance, depository or secondary-market selling charges.
Groww’s ASBA help instructions tell applicants to enter the 16-digit Groww demat account number where allotted shares should be credited. This makes the ability to retrieve and check that number before submission a practical selection criterion. A wrong demat number can prevent the intended credit even when the payment mandate was successful.
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UPI ASBA versus bank-net-banking ASBA
Both routes are forms of Application Supported by Blocked Amount, or ASBA. The difference is how you authorise the block.
| Route | How authorisation works | When it is useful | What happens to funds |
|---|---|---|---|
| UPI ASBA | You submit a UPI ID, receive a block-mandate request in the linked UPI app and approve it with your UPI PIN. | Convenient for eligible individual applications below the ₹5 lakh threshold stated in Zerodha’s current guidance, provided your bank and UPI app support the mandate. | The application amount is blocked in the bank account. On full allotment, the allotted amount is debited; on partial allotment, only the required amount is debited and the balance is unblocked; with no allotment, the blocked amount is unblocked. |
| Bank-net-banking ASBA | You log in to a participating bank’s internet-banking ASBA facility and authorise the block using your demat and issue details. | A fallback when you do not want to use UPI, when a UPI mandate fails, or when the bid size exceeds the UPI route’s stated limit. | The money remains in your bank account but is unavailable for other use until the basis of allotment is finalised and the bank releases or debits it. |
NPCI’s documented UPI flow is: choose the broker or intermediary, submit the IPO form with a UPI ID, receive the block request, enter the UPI PIN and let the bank block the application amount. NSE describes ASBA similarly as an authorisation to block money until the basis of allotment is finalised. UPI is one ASBA mechanism available through registered intermediaries; it is not a separate way to bypass the allotment process.
How to apply through UPI ASBA
Menus differ slightly between brokers and issues, but the sequence below reflects the documented flow. Complete it before the issue’s closing time; a submitted form without an approved mandate is not a completed application.
- Confirm eligibility and the application limit. Check that you are applying as an individual retail investor and that the bid value fits the UPI limit shown by your intermediary. Zerodha’s current guidance uses below ₹5 lakh for UPI ASBA and directs larger applications to ASBA.
- Open the IPO section in your broker app. Select the live issue, read the lot size and price-band instructions, and choose the retail category that matches your eligibility.
- Enter your bid. The documented Zerodha workflow permits up to three bids. Review quantity, price and cut-off selection before moving to payment.
- Use your own UPI identity. Enter a UPI ID linked to a bank account held by the applicant whose PAN and demat account are on the form. Do not use a family member’s UPI ID or bank account.
- Verify the demat destination. Check the displayed depository and demat number. If the app asks you to type a number, retrieve it from the account profile and compare every digit.
- Submit the application. Save the application number or confirmation screen. A broker status of submitted means the form was sent; it does not necessarily mean the bank mandate has been approved.
- Approve the block request in your UPI app. Open the notification from the bank or UPI application, check the issuer, amount and validity, and authorise with your UPI PIN before the mandate expires.
- Recheck the status. Return to the broker and bank screens to confirm that the mandate is accepted or that the application is otherwise marked successful. If it remains pending, do not create a second application until you understand the first status.
The UPI ID and bank account should belong to the demat-account holder. Broker instructions warn that a mismatch can lead to rejection. One UPI ID must not be reused for multiple IPO applications, even if you hold multiple demat accounts.
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- Sign in to your participating bank’s internet banking. Look for the IPO, ASBA or investment section during the issue’s application window.
- Select the issue and investor category. Enter the bid quantity and price exactly as shown in the issue form.
- Provide demat and depository information. You may need the demat ID, depository (NSDL or CDSL, as applicable) and DP details. Zerodha’s support guidance tells its account holders to use the correct details associated with their own account.
- Authorise the block. The bank confirms that the amount is blocked rather than transferred away. Keep sufficient clear balance until allotment is finalised.
- Save the reference number and monitor status. Keep both the bank acknowledgement and broker or issue status. If the bid is rejected, the reason may be visible only in the bank’s ASBA record.
Bank ASBA is not an early payment. The amount remains in your account, but the blocked portion cannot be spent or pledged until the bank releases it or debits the amount due for allotted shares.
What happens to your money after you apply?
Full allotment
The amount corresponding to the shares allotted is debited from the blocked balance. The shares are credited to the demat account specified in the application after the issue’s allotment and credit process.
Partial allotment
Only the amount required for the allotted shares is debited. The remainder of the block is released. The timing of the release depends on the bank, intermediary and issue timetable, so retain the application reference until the unblocking is visible in your account.
No allotment
The entire blocked amount is unblocked. No money should be sent to the broker as a purchase payment merely because you applied; ASBA is specifically designed to keep the funds in your bank account until the result is known.
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If the UPI mandate is rejected, expires or is never approved, the application may not enter the allotment process. A broker’s submitted status is not proof that the bank accepted the block. Check the bank or UPI app for the mandate result, then follow the broker’s correction or escalation instructions. Avoid submitting a duplicate application unless the intermediary confirms that the first one was not accepted.
How to compare demat accounts before choosing one
1. Check both payment rails
Confirm that the app can submit UPI ASBA and that you have a workable bank-ASBA alternative. A single failed UPI notification should not force you to miss the issue’s closing time. For bids above the UPI threshold stated by your intermediary, verify the bank-ASBA path in advance.
2. Test identity and demat data
Open the account profile and locate your PAN, 16-digit demat number, depository and DP details before an issue opens. Groww’s ASBA instructions specifically require the 16-digit Groww demat account number for credit. The principle applies to every broker: copy from the account record, not from memory or an old screenshot.
3. Inspect status language
Look for separate labels such as application submitted, mandate pending, mandate accepted, bid accepted and rejected. If the app shows only a generic confirmation, you may not know whether a bank action is still required.
4. Calculate the complete cost
Ask for the current schedule of account maintenance charges, depository-participant charges, account-opening fees, brokerage or other costs when selling allotted shares, and any IPO-specific platform or processing fee. Zerodha’s quoted terms remove platform and processing charges for its IPO application route, but that is not a complete account-fee comparison.
5. Confirm bank and UPI compatibility
Use an account held in the applicant’s name and check that the bank supports the required UPI mandate flow. Enable reliable notifications and keep the UPI application updated. If your bank routinely delays mandates, bank-net-banking ASBA may be the safer operational choice.
6. Read recovery instructions
Before applying, find the help article for a rejected bid, duplicate application, expired mandate and delayed unblocking. Note how to raise a ticket and what evidence—application number, mandate reference or screenshots—you must provide.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Common mistakes and how to prevent them
- Using someone else’s UPI ID: The applicant, UPI identity and linked bank account should match. Use your own credentials.
- Reusing one UPI ID: One UPI ID cannot be used for multiple IPO applications under the Zerodha guidance, even across different demat accounts. Use a distinct eligible UPI identity for each application or follow the intermediary’s current instructions.
- Typing the demat number incorrectly: Compare all digits with the account profile. Groww’s documented process requires 16 digits; an incorrect number can send the credit to the wrong destination or cause rejection.
- Assuming submission equals approval: Wait for the UPI mandate to be authorised and for the broker or bank to show an accepted status.
- Waiting until the final minutes: A notification delay, bank outage or expired mandate cannot be fixed after the issue closes. Submit early enough to complete authorisation.
- Applying twice to improve odds: Duplicate applications can be rejected. If you are unsure whether the first bid succeeded, check its status and ask support before trying again.
- Spending the blocked balance: Keep enough clear funds for the full bid until allotment is finalised. A later debit can fail if you move the money out.
- Confusing allotment with broker performance: A smooth app cannot override the issue’s allocation rules. Compare brokers on reliability and cost, not promised allotment.
A practical decision guide
Choose a UPI-first workflow when
- Your application is below the UPI threshold stated by your intermediary.
- Your own bank and UPI app reliably receive and approve mandates.
- You want a quick mobile process and clear in-app status updates.
Prefer bank-net-banking ASBA when
- Your bid exceeds the UPI limit or the issue’s instructions require ASBA through the bank.
- You do not want to use UPI or your bank’s UPI mandate delivery is unreliable.
- You are more comfortable verifying demat and DP details inside internet banking.
Choose between brokers after checking
- Whether both payment routes are available for your investor category.
- How easily you can retrieve and verify the demat number.
- Whether mandate-pending and accepted states are shown separately.
- The complete current fee schedule, including selling costs after allotment.
- Support response and documented recovery steps.
For a resident retail investor, this checklist is more useful than a league table. Zerodha provides a clearly documented dual-rail workflow, a stated no-platform-or-processing-fee policy for IPO applications and a three-bid process. Groww’s documentation highlights the 16-digit demat-number requirement. Whichever account you use, confirm the current issue rules and your bank’s compatibility on the day you apply.
Rules and figures to keep beside your application
- ₹5 lakh: Zerodha’s current support guidance states that individuals can use UPI ASBA below this application value; above it, use ASBA.
- One UPI ID per application: Do not reuse a single UPI ID for multiple IPO applications, even across multiple demat accounts.
- Applicant-owned payment identity: The UPI ID and linked bank account should belong to the demat-account holder.
- Up to three bids: This is the number permitted in the documented Zerodha application workflow.
- ASBA treatment of funds: Money is blocked until allotment is finalised, debited only for allotted shares and unblocked for the rest.
- 24 September 2024: This is the date of the SEBI circular referenced in guidance on UPI intermediaries; check the latest issue and intermediary instructions because procedures can be updated.
These figures are tied to the cited intermediary and regulatory documents, not a promise that every broker or future issue will use identical screens or limits.
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