What is ASBA in an IPO in India?
Quick Answer: ASBA, or Application Supported by Blocked Amount, lets an IPO applicant authorise a bank to block the bid amount instead of paying it upfront. SEBI requires every public issue bid to use ASBA. Money is debited only for shares allotted, and the rest is unblocked by T+2 after the issue closes.
SEBI's 2015 circular on public issues in India described ASBA as removing the need to write cheques. The applicant writes a bank account number instead and authorises the bank to pay only if shares are allotted. This explainer covers what ASBA is, which rule makes it compulsory, the routes for applying, the cut-off times on the closing day and what happens to the blocked money afterwards.
What is ASBA in an IPO?
ASBA stands for Application Supported by Blocked Amount: a bid in a public issue that carries your authorisation for a bank to block, not debit, the application money. Regulation 2(1)(d) of SEBI's ICDR Regulations, 2018 defines it.
The bank doing the blocking is a self-certified syndicate bank, or SCSB: a banker to an issue, registered with SEBI, that offers the ASBA facility. SEBI publishes a list of SCSBs for direct ASBA. According to its ICDR master circular, SEBI first introduced ASBA on 1 September 2008.
Blocked money stays in your account, but you cannot spend it while the bid is live. It is released to the issuer only if shares are allotted to you.
Is ASBA mandatory for IPOs in India in 2026?
Yes. Since 1 January 2016 every applicant in a public issue has had to pay through ASBA, and the rule stands unchanged in India in 2026. It dates back to SEBI's circular of 10 November 2015, which said all investors in a public issue shall use only ASBA for payment.
Today the rule sits in the regulations themselves. Regulation 35 of the ICDR Regulations says a mainboard issuer shall accept bids only through the ASBA facility, and Regulation 256 applies the same line to SME issues. The requirement covers retail investors, qualified institutional buyers and non-institutional investors alike, as SEBI's master circular, last updated on 9 February 2026, sets out.
No cheque or direct transfer route exists for an IPO bid. Even when you apply through a broker's app, the payment leg is an ASBA block on your bank account, placed either by your bank or through a UPI mandate.
How does the ASBA facility work in an IPO?
ASBA works in 3 stages: the bank blocks the bid amount, the exchange records the bid, and the registrar later tells the bank what to debit.
Before blocking, the SCSB must check that the PAN in the application matches the PAN linked to your bank account, under SEBI's circular cutting listing time to T+3. The registrar then matches the demat PAN against the bank PAN. Mismatched applications are treated as invalid.
Under SEBI's master circular, an SCSB may block money only against a funded deposit account. The block has to stay in place until the bid is withdrawn, rejected or settled, so the full amount is available when allotment is finalised.
UPI is not a separate payment method here. It is a way of placing the ASBA block. A sponsor bank passes the mandate between the exchange and NPCI. Our note on UPI mandate limits and approval steps for IPOs shows how UPI mandates behave in practice.
How do I apply for an IPO through ASBA?
SEBI's master circular allows 3 ASBA routes: directly with your bank, through a broker's 3-in-1 account, or through an intermediary using your UPI ID. Going direct means submitting the form at an SCSB branch or through the bank's internet banking, if the bank offers it.
Some brokers offer the 3-in-1 route, which uses a linked trading, demat and bank account. With the third route, you hand the form to a syndicate member, registered broker, depository participant or registrar, who uploads the bid while your UPI app receives a mandate to approve.
Under SEBI's circular revising UPI limits dated 5 April 2022, individual investors applying for up to ₹5 lakh through such an intermediary must use UPI. That applied to issues opening on or after 1 May 2022, after NPCI raised the IPO mandate limit from ₹2 lakh. Whether UPI mandates attract fees is covered in our note on why IPO blocks stay free.
What are the ASBA IPO timings?
On the closing day, called T, 3-in-1 account bids close at 5 pm and net banking or mobile banking ASBA bids at 4 pm. Both cut-offs come from the annexure to SEBI's T+3 circular.
Paper forms submitted at a bank branch close earlier, at 1 pm on T. UPI mandates must be accepted by 5 pm on T, and bids can be modified from the opening day until 5 pm on the closing day. For the issue itself, closing time is 4 pm on T for qualified institutional buyers and non-institutional investors, and 5 pm for retail and other reserved categories.
Bids can also be pulled before these cut-offs, and our note on cancelling an IPO application on NSE walks through the ASBA and UPI withdrawal steps.
What happens to the blocked amount after allotment?
After allotment, the allotted amount is debited and every unallotted rupee is unblocked by 4 pm on T+2, per SEBI's T+3 schedule. Shares reach demat accounts the same day. Trading starts on T+3.
ASBA money trail in a T+3 public issue (SEBI circular SEBI/HO/CFD/TPD1/CIR/P/2023/140; as of 22 September 2026)
| Day | What happens to the blocked amount |
|---|---|
| T (issue close) | Bid cut-offs; final certificates from sponsor bank and SCSBs the same evening |
| T+1 | Basis of allotment finalised before 6 pm and approved by the exchange before 9 pm |
| T+2 | Debit and unblock instructions sent; fund transfer done before 2 pm, unblocking before 4 pm |
| T+2 | Shares credited to demat accounts before 6 pm |
| T+3 | Trading starts on the exchange |
A bank that unblocks late pays for the delay. Under SEBI's master circular the SCSB pays the higher of ₹100 a day or 15% a year on the application amount, and for non-allotted and partly allotted bids that clock starts on T+3 and runs until the money is released.
Withdrawn or cancelled bids are released sooner. The registrar sends those details to banks daily, and the SCSB must unblock them by the close of that bank day.
Track IPO dates before your bank blocks the money
Because the block lasts until T+2, it helps to know an issue's closing date and listing day in advance. Multibagg's IPO page lists upcoming, open and recently listed issues with their price bands, lot sizes and dates, and Multibagg Alerts can flag corporate actions on stocks you later own.
Disclaimer: This article is for educational and informational purposes only. Multibagg AI is not a SEBI-registered investment adviser or research analyst, and it does not provide investment, financial, legal or tax advice. Nothing here is a recommendation to buy, sell, hold or invest in any security. Market data is shown as of the dates stated and may have changed since. Please consult a SEBI-registered adviser before making any investment decision.
Aaditya Aanand is the founder and CEO of Multibagg AI. An IIT Kanpur alumnus, he has worked across technology and financial markets at Goldman Sachs and American Express. His writing explores investing, markets and AI.