Product Activation: IPO Application via ASBA and UPI

Why this page is structured this way: A client applying in an IPO makes exactly one consequential choice — which payment route to use — and then lives inside a fixed clock. The page therefore settles the route choice first, then walks the clock as the client experiences it from bid to listing, then handles the two categories where the rules differ materially (non-institutional sub-categories and SME issues), then the money coming back. The broker-side issue master, sponsor-bank empanelment and reconciliation are covered in the IPO and OFS deep dive.

TL;DR

• UPI is compulsory for individual bids up to ₹5 lakh. SEBI/HO/CFD/DIL2/CIR/P/2022/45 (5 Apr 2022) requires all individual bidders in issues opening on or after 1 May 2022 with application size up to ₹5 lakh to use the UPI mechanism when applying through a non-bank intermediary.
• The mandate must be accepted by 5 pm on the issue closing day. The T+3 activity schedule issued under SEBI/HO/CFD/TPD1/CIR/P/2023/140 (9 Aug 2023) fixes UPI mandate acceptance at T day 5 pm, alongside retail bid closure at 5 pm and non-retail closure at 4 pm.
• Listing is on T+3. Voluntary for issues opening on or after 1 September 2023 and mandatory for issues opening on or after 1 December 2023; unblocking of non-allotted UPI applications completes before 4 pm on T+2.
• Retail is still ₹2 lakh, and the non-institutional split is not 2 to 5. A retail individual investor bids up to ₹2,00,000. Within the non-institutional portion, one-third is reserved for application sizes above ₹2 lakh and up to ₹10 lakh and two-thirds for sizes above ₹10 lakh — a common misstatement worth correcting in product copy.
• Delayed unblocking is compensated. Unblocking for non-allotted, partially allotted, cancelled or withdrawn applications must complete within two working days of the issue closing date; beyond that the self-certified syndicate bank, or the post-issue lead manager from the date a grievance is received, pays ₹100 per day or 15 per cent per annum, whichever is higher.
• SME issues no longer have a retail category in the old sense. The minimum application is two lots and above ₹2 lakh, which sits above the ₹2 lakh retail definition; non-institutional allotment in SME issues moved from proportionate to draw of lots.
• There is no official “UPI 2.0” or “UPI 3.0” for IPOs. The phases are Phase I, Phase II and the T+3 phase; the marketing labels do not correspond to SEBI instruments. [industry practice — unverified]

Conceptual overview

An IPO application is not an order. Nothing is bought at the moment the client submits it; what happens instead is that a bid is registered on the exchange’s bidding platform and an equivalent amount of money is blocked — not debited — in the client’s own bank account. If shares are allotted, the blocked amount is debited to the extent of the allotment and the rest is released. If nothing is allotted, the whole block is released. The client’s money never leaves their bank account before allotment, and the broker never holds it. That is the entire architecture of Applications Supported by Blocked Amount, and it is why the client-facing failure modes are all about blocking and unblocking rather than about execution.

UPI entered this architecture as a way to make the block instruction reach the client’s bank without paper. The client supplies a UPI handle with their bid; the exchange routes a mandate request through the sponsor bank to the client’s bank; the client’s UPI application shows a mandate notification; the client approves it and the funds are blocked. Every one of those hops can fail, and because the client sees only the last one, a mandate that never arrives feels like a broker failure even when the break is elsewhere. The design implication is that the bid status and the mandate status are two different things that must be shown separately.

The clock is the other half of the story. Since the move to T+3 listing, the entire post-close sequence — third-party checks, basis of allotment, exchange approval, fund transfer, unblocking, corporate action, listing application — is compressed into roughly two days, with named cut-offs at each step. That compression is good for the client, who gets liquidity three days after the issue closes instead of six, and unforgiving for anyone whose mandate was not accepted in time. There is no grace period on the 5 pm mandate deadline.

1. Regulatory framework

• SEBI/HO/CFD/DIL2/CIR/P/2018/138 (1 Nov 2018) [not yet in index] — introduces the UPI mechanism in ASBA for retail applications through intermediaries, the “Phase I” arrangement. See Circulars — SEBI other.
• SEBI/HO/CFD/DIL2/CIR/P/2019/50 (3 Apr 2019), SEBI/HO/CFD/DIL2/CIR/P/2019/76 (28 Jun 2019), SEBI/HO/CFD/DIL2/CIR/P/2019/85 (26 Jul 2019) and SEBI/HO/CFD/DCR2/CIR/P/2019/133 (8 Nov 2019) [not yet in index] — the Phase II sequence, which ended the physical movement of application forms from non-bank intermediaries to self-certified syndicate banks and extended the phase.
• SEBI/HO/CFD/DIL2/CIR/P/2022/45 (5 Apr 2022) — raises the UPI application ceiling, requiring all individual bidders in issues opening on or after 1 May 2022 with application sizes up to ₹5 lakh to use the UPI mechanism.
• SEBI/HO/CFD/TPD1/CIR/P/2023/140 (9 Aug 2023) — reduces the listing timeline from T+6 to T+3 and carries the activity schedule reproduced in Section 3; voluntary for issues opening on or after 1 September 2023, mandatory from 1 December 2023.
• SEBI/HO/CFD/DIL2/CIR/P/2021/2480/1/M (16 Mar 2021) — streamlines the IPO-with-UPI process and establishes the investor-grievance and compensation framework, effective for issues opening on or after 1 May 2021; amended by SEBI/HO/CFD/DIL1/CIR/P/2021/47 (31 Mar 2021), SEBI/HO/CFD/DIL2/P/CIR/2021/570 (2 Jun 2021), SEBI/HO/CFD/DIL2/CIR/P/2022/51 (20 Apr 2022), SEBI/HO/MIRSD/MIRSD_RTAMB/P/CIR/2022/76 (30 May 2022) and the August 2023 circular above [not yet in index] for the amending circulars.
• SEBI/HO/CFD/DIL2/P/CIR/2022/75 (30 May 2022) [not yet in index] — requires ASBA applications in all categories, for issues opening on or after 1 September 2022, to be processed only after the money has actually been blocked in the investor’s bank account.
• Master Circular for SEBI (Issue of Capital and Disclosure Requirements) Regulations, 2018 — the consolidated position, most recently reissued on 9 February 2026 consolidating circulars up to 31 December 2025, succeeding SEBI/HO/CFD/PoD-2/P/CIR/2023/00094 (21 Jun 2023) and the November 2024 version. The February 2026 reissue is a consolidation and introduced no new UPI or timeline change [not yet in index].
• BSE 20220803-40 (3 Aug 2022) and the corresponding NSE circular — processing of ASBA applications in public issues, including the sponsor bank’s blocking requests and the 5 pm confirmation cut-off on the issue closing date.
• NSE/CMTR/63747 — modification of the pre-open call-auction duration for IPO and relisted scrips, which is what the client actually meets on listing morning.
• NPCI/UPI/OC-128A/2026-27 (3 Jul 2026, in force 15 Jul 2026) — extends deemed-debit treatment to additional response codes and, for IPO, Retail Direct Scheme and secondary-market block mandates, permits a specified handling of excluded codes where the amount conforms to the mandate; requires members to reconcile mandate and transaction files, unblock expired mandates and prevent duplicate or out-of-validity execution.

2. The route choice

	UPI mechanism through a broker	Bank-ASBA with a self-certified syndicate bank	3-in-1 account
Who can use it	Individual bidders; compulsory up to ₹5 lakh when applying through a non-bank intermediary	Any category, including bids above the UPI ceiling	Clients of a bank-led broker where trading, demat and bank accounts are linked
Where the bid is entered	Broker’s app or website	Bank’s net banking or mobile app, or a physical form at the bank	Broker’s platform, with the linked bank account debited-and-blocked internally
How the block happens	Mandate request routed via sponsor bank to the client’s bank, approved in the UPI app	The bank blocks directly, no mandate	The same bank blocks in its own account, no mandate
Client cut-off on the closing day	Bid by 5 pm for retail, mandate accepted by 5 pm	Up to 4 pm for net banking, mobile or syndicate UPI-ASBA; 1 pm for physical forms at the bank	Up to 5 pm
Main failure mode	Mandate not delivered or not approved in time	Bank-side blocking failure or branch cut-off	Rarely fails; limited to that bank’s customers
Bids above ₹5 lakh	Not available	Available	Available

Three clarifications matter for product copy. First, physical ASBA forms were not abolished — what Phase II ended was the physical movement of forms from non-bank intermediaries to banks. A retail investor can still submit a physical form directly to a self-certified syndicate bank. Second, the 3-in-1 route is not a separate regulatory category; it is bank-ASBA where the same institution happens to hold all three accounts, which is why it has the fewest moving parts. Third, above ₹5 lakh an individual cannot use the UPI route at all, so a high-value non-institutional applicant has to be pushed to a bank route rather than allowed to attempt a mandate that will be rejected.

Bid status and mandate status are different states

The most damaging simplification in an IPO interface is a single “application status”. A bid can be accepted on the exchange platform while the mandate is still pending, rejected by the client’s bank, or never delivered. Model them as two fields, show both, and give the client a way to re-trigger the mandate. A client staring at “submitted” at 4:55 pm on the closing day, with an unapproved mandate sitting in a UPI app they have not opened, is a design failure with a hard deadline attached.

3. The clock, as the client experiences it

T is the issue closing date. The activity schedule issued under the August 2023 circular fixes the following times; the rows a client can act on are marked.

When	What happens	Client action?
Issue open to T, 5 pm	Bidding, bid modification and depository validation	Yes
T, 5 pm	UPI mandate acceptance deadline	Yes — the hard one
T, 5 pm	Retail and reserved-category bid closure	Yes
T, 4 pm	Qualified-institutional and non-institutional closure	Yes
T, 4 pm	Bank-ASBA via net banking, mobile or syndicate UPI-ASBA closes	Yes
T, 1 pm / 12 pm	Physical form cut-offs at the bank and at the syndicate	Yes
T, before 7:30 pm and 9:30 pm	Final certificates from self-certified syndicate banks, and from sponsor banks for UPI	No
T+1, before 9:30 am / 1 pm	Third-party checks completed for UPI and non-UPI applications	No
T+1, before 6 pm	Rejections finalised and basis of allotment settled	No
T+1, before 9 pm	Basis of allotment approved by the exchange	No
T+2, by 9:30 am	Fund transfer instruction files initiated	No
T+2, before 2 pm	Fund transfer completed for bank and online ASBA	No
T+2, before 4 pm	Unblocking completed for UPI applications via the sponsor bank	No
T+2, before 2 pm to 6 pm	Corporate action — shares credited to demat	No
T+2, before 7:30 pm	Listing application filed with the exchanges	No
T+2, before 9 pm / T+3	Allotment advertisement on website, then in newspapers	No
T+3	Trading starts	Yes

Two things follow for interface design. Everything the client can influence happens on or before T at 5 pm, which means every reminder, nudge and escalation belongs in that window and nowhere else. And the allotment result becomes knowable late on T+1, not on T+2 — which is why “check allotment status” traffic spikes before the broker’s own data has refreshed, and why linking to the registrar’s status page is more honest than showing a stale internal state.

3.1 Field-level view of the bid record

name	type	length	mandatory	source-system	destination-system(s)	notes
pan	string	10	yes	Client master	Exchange bidding platform, registrar	The duplicate-application key; one PAN, one application per category
dp_id_client_id	string	16	yes	Demat account master	Exchange platform, depository	Where allotted shares are credited; must be active
bid_quantity	integer	varies	yes	Client input	Exchange platform	In multiples of the lot size
bid_price	decimal	varies	conditional	Client input	Exchange platform	Omitted where the cut-off option is used
cut_off_flag	flag	1	conditional	Client input	Exchange platform	Available to retail, employees and retail shareholders in a reservation portion; prohibited for institutional and non-institutional bidders
investor_category	code	varies	yes	Bid screen	Exchange platform, registrar	Retail, non-institutional by sub-category, employee, shareholder reservation
upi_handle	string	varies	conditional	Client input	Sponsor bank, client’s bank	UPI route only; validated against the accepted-handle list
application_number	string	varies	system	Exchange platform	Client statement, registrar, support	The reference every later query needs
mandate_status	code	varies	system	Sponsor bank	Client status screen	Pending, accepted, rejected, expired — distinct from bid status
blocked_amount	decimal	15,2	system	Client’s bank	Client status screen	Blocked, not debited; equals bid value at the bid price or cap price
allotted_quantity	integer	varies	system	Registrar	Depository credit, client statement	Zero is a valid and common outcome
unblock_timestamp	datetime	varies	system	Sponsor bank or syndicate bank	Client statement, grievance evidence	The clock that the compensation framework runs against

Field names are the semantic labels a broker’s integration layer typically carries; the exchange bidding-platform and registrar file specifications are authoritative. [AI inference — verify before acting]

4. Categories, sub-categories and the cut-off price

A retail individual investor is one who bids for a value of not more than ₹2,00,000. That number has not moved, notwithstanding the ₹5 lakh UPI ceiling — the two are different things, and conflating them is the second most common error in IPO product copy after the mandate-status problem.

The non-institutional portion is sub-categorised, and not as it is often described. One-third of the non-institutional portion is reserved for applications of more than ₹2 lakh and up to ₹10 lakh; two-thirds for applications of more than ₹10 lakh. Allotment within each sub-category is by draw of lots at the minimum bid lot rather than proportionate. A client with ₹6 lakh to deploy is therefore in the smaller reservation with a better statistical chance per rupee than they would have at ₹12 lakh — a genuinely useful thing for an interface to surface, and one almost none do.

The cut-off price option lets a bidder agree to the price discovered at the end of book building instead of naming one. It is available to retail individual investors, employees, and retail individual shareholders in a shareholder reservation portion, and is prohibited for qualified institutional buyers and non-institutional investors. For a retail client it is almost always the right default, because a bid below the discovered price is simply not allotted.

5. SME issues

SME issues used to be the retail-friendly corner of the primary market. They are not any more, and the change is structural rather than cosmetic. The minimum application size is now two lots per application, valued above ₹2 lakh. Because the ICDR definition of a retail individual investor caps that category at ₹2 lakh, an SME application above ₹2 lakh cannot be a retail application at all — SEBI’s own framework review noted this and proposed replacing the term “retail individual investors” with “individual investors who apply for minimum application size” in the SME context.

Two consequences for a client-facing product. The minimum cheque for an SME issue is above ₹2 lakh, which puts it outside most retail clients’ intent and outside the UPI-compulsory band’s assumptions. And non-institutional allotment in SME issues moved from proportionate to draw of lots, matching the main board, so a larger application no longer produces a proportionally larger allotment.

Dates and numbers in the SME framework are partly secondary-sourced

The two-lot, above-₹2-lakh minimum and the shift to draw of lots are stated in SEBI’s SME framework review memorandum. The gazette notification number and date for the corresponding ICDR amendment, the SEBI board-meeting date, and the exchange implementation circular numbers were corroborated only from secondary compilations in this research pass. [AI inference — verify before acting] before quoting an effective date to an issuer or a client.

6. Allotment, refunds and unblocking

For a UPI applicant, “refund” is the wrong mental model and the wrong word to use in the interface. Nothing was paid, so nothing is refunded. What happens is that the block is released — in full for a non-allotment, partially for a partial allotment — and the debit that does occur is only to the extent of shares actually allotted. Unblocking for UPI applications completes before 4 pm on T+2 under the activity schedule.

The outer limit is two working days from the issue closing date, and it is enforced with money. Where unblocking is delayed beyond two working days — for non-allotted or partially allotted bids, and for cancelled, withdrawn or deleted applications — or where the bank blocked a multiple of the application amount, or blocked more than the bid amount, the investor is compensated at ₹100 per day or 15 per cent per annum, whichever is higher. The payer is the self-certified syndicate bank responsible for the failure, or the post-issue lead manager running from the date the investor’s grievance is received until the amount is unblocked.

A second, older mechanism sits alongside this one and is easy to confuse with it: an opportunity-loss-based compensation formula for bid-entry failures by self-certified syndicate banks, originating in January and February 2018 circulars and consolidated in the ICDR master circular. It addresses a different failure — a bid that never reached the platform — and is calculated differently. Support scripts should distinguish them, because a client claiming compensation needs the right one.

7. Alternatives

Client situation	Option A	Option B	When to pick which
Retail bid up to ₹2 lakh	UPI through the broker	Bank-ASBA	UPI for speed and a familiar approval gesture; bank-ASBA where the client’s bank’s UPI mandate flow is unreliable
Individual bid between ₹2 lakh and ₹5 lakh	UPI through the broker	Bank-ASBA	Either; the applicant is in the smaller non-institutional sub-category regardless of route
Individual bid above ₹5 lakh	Bank-ASBA or 3-in-1	Not UPI	The UPI route is closed above the ceiling; attempting it wastes the window
Client wants certainty of allotment price	Cut-off price bid	Named price bid	Cut-off for retail almost always; a named price only where the client genuinely will not pay above it
Client wants exposure without the application lottery	Buy on listing	Apply	Applying is free optionality with an opportunity cost on blocked funds; buying on listing pays the listing premium but is certain
Debt public issue	Same ASBA plumbing	—	See bonds, G-Secs and NPS for the debt shelf around it

Practical notes

• [gotcha] The 5 pm mandate deadline on the closing day admits no exception. Build reminders at T minus one day, on the morning of T, and at least twice during the afternoon, and make the last one a push notification rather than an email.
• [gotcha] UPI handle validation is not cosmetic. Only handles on the accepted list work for mandate-based blocking, and the list changes. Validate at bid entry against the current list and explain a rejection in terms of the handle, not as a generic error.
• [gotcha] One PAN, one application per category. Family members applying from a single device, or a client applying through two brokers, produce rejections at the third-party check stage on T+1 with no remedy. Warn at bid time.
• [risk trade-off] Blocked funds are unavailable for trading for the duration. A client who blocks a large amount on the closing day and then meets a margin call has created a problem the broker will be asked to solve. Show the blocked amount in the funds summary, not only in the IPO section.
• [industry practice] Brokers that deep-link to the registrar’s allotment-status page rather than mirroring allotment data internally report fewer disputes, because the registrar is the source of truth and refreshes first. [industry practice — unverified]
• [gotcha] “Refund” is the wrong word for a UPI applicant and produces tickets asking where the money went. Use “unblocked” in every client-facing string, and show the unblock timestamp, because that timestamp is the evidence a compensation claim rests on.
• [cost optimization] The compensation framework is a liability for whoever caused the delay, not for the client to chase silently. Capturing the unblock timestamp per application, automatically, turns a manual grievance investigation into a query.
• [AI inference — verify before acting] There is no SEBI instrument called “UPI 2.0” or “UPI 3.0” for public issues; the official sequence is Phase I, Phase II and the T+3 phase. The NPCI circular raising the per-transaction UPI limit for IPOs to ₹5 lakh was not verified against NPCI’s own document in this pass.

Cross-references

• IPO and OFS, broker side — issue-master setup, sponsor-bank empanelment, the ten-step broker flow, OFS, rights issues, buybacks and reconciliation
• Payment mandates — UPI mandate and block mechanics shared with the secondary-market block facility
• Pre-open and closing auction — the listing-day call auction the client meets on T+3
• Bank account capture — the funding account and third-party-funds prohibition that underpin ASBA
• Field atlas — Section H, demat account — the demat identifiers the bid record carries
• Surveillance norms, GSM and ASM — listing-day surveillance measures on newly listed scrips
• Bonds, G-Secs and NPS — public issues of debt securities using the same ASBA rails
• Investor grievance redressal — where an unresolved unblocking complaint goes
• Circulars — SEBI other — the ICDR and public-issue authorities
• Circulars — NPCI — mandate and deemed-debit handling for IPO blocks

Verified through

2026-09-11

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AI-generated and not legal, financial, or compliance advice. See the project README for full disclaimer.