ASBA: Applications Supported by Blocked Amount

The History and Regulatory Background of ASBA

Before ASBA existed, the mechanics of IPO applications in India were cumbersome. An investor would fill out a physical application form, attach a cheque for the full bid amount, and submit it through a broker or a bank branch. The cheque was then deposited into a central escrow account maintained by the issuer's bankers. Funds from thousands - sometimes millions - of applicants would flow into this escrow, sitting there during the entire subscription period, which could stretch across three to five business days, followed by an allotment process that took additional days.

For the investor, this meant capital was locked away with no return for up to two weeks or more. For the banking system, processing millions of cheques and managing refunds was an enormous operational burden. Refunds, in particular, were a major pain point. An investor who was not allotted any shares had to wait for a refund cheque to arrive by post - a process that could take ten to fifteen days in the early 2000s. Delayed refunds were a frequent cause of investor grievances.

SEBI first introduced ASBA in a pilot form in 2008, initially as an optional facility available to retail investors through designated banks. The response was cautious at first, partly because technology infrastructure at banks was not uniformly ready and partly because investors were unfamiliar with the concept. SEBI progressively expanded the scope, and by 2011, ASBA was made mandatory for all non-retail investor categories - namely Qualified Institutional Buyers (QIBs) and Non-Institutional Investors (NIIs).

The decisive step came when SEBI extended the ASBA mandate to all retail investors for mainboard IPOs, and subsequently to rights issues, follow-on public offers (FPOs), and other public issues. By the time UPI was integrated into the ASBA framework around 2019-2020, India had built one of the most sophisticated public-issue application systems in the world. SEBI circular SEBI/HO/CFD/DIL2 and related circulars over the years have set out detailed operational requirements for all participants in the ASBA chain.

In parallel, SEBI has also been vigilant about malpractices. Instances where Self-Certified Syndicate Banks (SCSBs) failed to block amounts correctly, or where trading members uploaded applications with incorrect details, have attracted regulatory action. SEBI's enforcement posture around ASBA underscores how seriously it treats the facility as a cornerstone of investor protection in the primary market.

It is also worth noting that ASBA applies not just to equity IPOs but to a range of public issues: rights issues (where ASBA is called R-ASBA), FPOs, and debt public issues. The same principle - block now, debit only on allotment - applies across all these instruments, making it a genuinely versatile framework rather than a narrow IPO-specific tool.

For regulators, issuers, and market participants, ASBA solved a critical trust problem. When investor funds are held in escrow by a third party, there is always a governance concern about how those funds are managed and how quickly refunds are processed. By keeping funds in the investor's own account until allotment, ASBA eliminates that concern almost entirely. The investor's bank is always the custodian, and the block is automatically released once the registrar transmits allotment data.

Key Participants in the ASBA Ecosystem

ASBA works because of a well-defined set of participants who each play a specific role. Understanding who does what helps you, as an investor, know exactly where to go when something does not work as expected.

The first key participant is the Self-Certified Syndicate Bank (SCSB). These are banks that have been registered with SEBI to accept and process ASBA applications. SCSBs maintain a specialised system that can receive application instructions, place a block on the specified amount in the investor's account, and transmit application data to the stock exchange. Public-sector banks and large private banks are typically listed as SCSBs. SEBI publishes an updated list of SCSBs on its website, and this list has expanded significantly over the years as more banks have come on board.

The second participant is the Registrar to the Issue (RTI). This is the intermediary responsible for processing allotments, reconciling application data, and instructing SCSBs to debit or unblock amounts after allotment. In India, SEBI-registered registrars handle this function for most large IPOs. They work closely with the stock exchanges (NSE and BSE) and the lead managers to the issue.

Lead Managers (or Book Running Lead Managers - BRLMs) are the investment banks appointed by the issuing company to manage the IPO process. They coordinate with SCSBs, the registrar, the stock exchanges, and SEBI throughout the process. While they are not directly involved in the ASBA block-unblock mechanism, they are responsible for the overall integrity of the issue process.

Stock Exchanges (NSE and BSE) play a critical infrastructure role. They host the bidding platform - the Electronic IPO Bidding platform - through which ASBA applications are entered and processed. Both NSE and BSE run parallel systems, and data is reconciled between them. The exchanges also publish allotment basis and communicate with registrars.

Brokers and Intermediaries who are SEBI-registered trading members can also act as collection points for ASBA applications under the Syndicate ASBA facility. This allows investors to submit their IPO applications through their brokers' platforms, with the broker transmitting the application details to the exchange, and the investor's bank subsequently placing the block. This is the channel most retail investors who invest through discount brokers or full-service brokers will be familiar with.

The UPI Ecosystem - specifically NPCI (National Payments Corporation of India) and UPI-enabled payment service providers - became part of the ASBA chain when SEBI mandated UPI as an additional payment mechanism for retail investors. Under UPI-ASBA, the investor's UPI ID is linked to their bank account, and a mandate request is sent to the investor's UPI app for approval. On approval, the funds are blocked. This has made the process faster and more accessible.

Finally, there is the Investor themselves, who must ensure that the ASBA-linked bank account has sufficient funds at the time of application, that the UPI mandate is approved within the stipulated time, and that the details entered in the application - DP ID, Client ID, PAN, bank account - are correct. Any error at the investor level can lead to rejection of the application, which is why understanding the process thoroughly matters.

The interplay between all these participants is orchestrated largely through technology: exchange bidding platforms, SCSB banking systems, and the UPI rails all need to work in concert within tight timelines set by SEBI.

How the ASBA Blocking Mechanism Works Step by Step

The actual mechanics of ASBA, while straightforward in principle, involve several precise steps that happen in a defined sequence. Here is how the process unfolds from the investor's perspective and behind the scenes.

When an IPO opens for subscription, the investor decides how many lots they wish to apply for and at what price (or at the cut-off price, which most retail investors choose). The total bid amount - number of shares multiplied by the bid price - is the amount that will be blocked.

If the investor is applying through a bank's ASBA channel (e.g., through net banking), they log into their bank's portal, navigate to the IPO section, fill in the application details including PAN, DP ID, client ID, bid quantity, and price, and submit. The bank's system immediately places a lien on the equivalent amount in the investor's savings or current account. The application is then transmitted to the exchange.

If the investor is applying through a broker's platform using UPI, the process is slightly different. The investor fills in the application on the broker's app or website, provides their UPI ID, and submits. The broker transmits the application to the exchange. The exchange or the SCSB then sends a UPI mandate request to the investor's UPI app. The investor must approve this mandate within a specified window - currently 30 minutes as per SEBI guidelines, though the exact window can change; always refer to the latest SEBI circular for current requirements. On approval, the bank blocks the funds.

During the subscription period (which typically runs for three working days for mainboard IPOs), the block remains in place. The investor can see the blocked amount in their bank statement, and it cannot be used for other transactions. However, any interest applicable on the savings account continues to accrue on the full balance including the blocked amount, since technically the funds have not left the account.

After the subscription period closes, the registrar collates all bids and runs the allotment process. For oversubscribed issues, the allotment is typically done by lottery for retail investors (in the case of oversubscription within the retail category). The registrar determines which investors have been allotted how many shares.

The registrar then sends allotment instructions to the respective SCSBs. For investors who have been allotted shares, the SCSB debits exactly the amount corresponding to the allotted shares from the investor's account and transfers it to the issuer's escrow. For investors who have been partially allotted (for example, they applied for three lots but received one), only the amount for the allotted lot is debited and the rest is unblocked. For investors who receive no allotment, the entire blocked amount is unblocked.

Creditoring of shares to the investor's demat account happens after the debit is processed. SEBI has progressively reduced the timeline from application to listing: the T+6 timeline (six working days from issue close to listing) was in effect for several years, and SEBI has since pushed for T+3 for mainboard IPOs, aligning India with global best practices. Always check the latest SEBI guidelines for the current mandatory timeline.

The entire process - from application to listing - is now largely automated and digital, which is a remarkable transformation from the paper-and-post era of the early 2000s. For investors, the key discipline required is ensuring the bank account has sufficient funds and that any UPI mandate is approved promptly.

ASBA vs the Old Cheque-Based System: A Detailed Comparison

To truly appreciate ASBA, it helps to contrast it systematically with the pre-ASBA, cheque-based application process that governed IPO investing in India for decades.

Under the old system, an investor wrote a cheque for the full application amount - say, applying for two lots at a price of Rs 500 per share with a lot size of 50 shares meant a cheque for Rs 50,000. This cheque was physically deposited into an escrow account. The money left the investor's account the moment the cheque cleared. It sat in the escrow - earning no return for the investor - for the entire subscription and allotment period. If the investor was not allotted shares, they received a physical refund cheque by post. In the early days, this refund could take ten to fifteen days; even after electronic refunds became common, the timeline was typically five to seven working days.

Under ASBA, by contrast, the Rs 50,000 never actually leaves the investor's account. A lien is placed on it. The money continues to earn savings-account interest. The investor's net worth statement still shows those funds. If no shares are allotted, there is no refund to process - the block is simply lifted, instantly and automatically, once the registrar transmits instructions. Even if shares are partially allotted, only the proportionate amount is debited.

The implications for float income are significant. In a large IPO, total subscription amounts can run into tens of thousands of crores of rupees. Under the old system, all of that money sat in escrow. Under ASBA, that money stays in millions of individual bank accounts, continuing to earn returns for their owners. While the per-investor saving is modest - perhaps Rs 100-200 in interest for a typical retail application over a one-to-two-week period - in aggregate across all applicants it is a meaningful transfer of value back to investors.

The operational simplification is equally important. Refunds were one of the most grievance-prone aspects of the old system. Delayed refunds, cheques going astray, discrepancies in refund amounts - these were recurring complaints. ASBA eliminates the refund step entirely for non-allotted amounts, which is a major improvement in investor experience.

From the issuer's perspective, ASBA also provides more reliable subscription data. Since funds are guaranteed to be in the investor's account (they cannot have been spent elsewhere, given the lien), there is no risk of application cheques bouncing - a real problem in the old system that could distort subscription figures.

For the banking system, the move from processing millions of physical cheques and refund orders to managing electronic lien instructions represents a massive reduction in manual work and operational risk. Bank branches no longer need to be collection centres for IPO application forms, freeing up staff time for other activities.

The only scenario where ASBA could be seen as less convenient is if the investor wants to use their funds for something else during the IPO subscription period - the lien prevents that. However, this is a deliberate feature, not a flaw: it ensures that applicants have genuine purchasing power behind their bids, improving the integrity of the subscription process.

UPI-Based ASBA: The Next Step Forward

The integration of UPI (Unified Payments Interface) with the ASBA framework represents the latest significant evolution in IPO application technology in India. SEBI introduced UPI as a payment mechanism for retail investors in public issues with the intent of making the application process even faster, simpler, and more accessible - particularly for investors in smaller cities and towns who may not have convenient access to bank branches.

Under the traditional ASBA route, retail investors generally needed to apply either directly through their SCSB's net banking portal or physically at the bank branch. For investors who applied through brokers or other intermediaries, there was often a longer processing chain, with applications moving from the intermediary to the SCSB before the block was placed - adding time and potential points of failure.

UPI-ASBA streamlines this. When an investor applies for an IPO through a broker's app, a registrar's portal, or various other permitted platforms, they provide their UPI ID linked to their bank account. The system sends a mandate request - essentially a request to approve a block on the specified amount - directly to the investor's UPI app (Google Pay, PhonePe, BHIM, or any UPI-enabled banking app). The investor approves this in seconds, and the block is placed immediately.

SEBI has mandated UPI as the only permissible payment mechanism for retail individual investors applying through intermediaries other than SCSBs. This means if you apply through your broker's IPO application module, you must use UPI. If you prefer not to use UPI, you can apply directly through your bank's SCSB channel (net banking or branch).

One important operational detail: the UPI mandate approval must happen within a specified timeframe. SEBI has set out deadlines in its circulars, and failure to approve the mandate within the window will result in the application being rejected. Investors who apply early in the subscription period and forget to approve the mandate - or who apply late on the last day without leaving sufficient time for approval - can find their applications cancelled. This is one of the most common reasons for IPO application failures among retail investors.

Another detail worth knowing is that UPI-ASBA initially had a per-application limit (at one point set at Rs 2 lakh per application). SEBI has revised these limits over time - always check the current SEBI circular for the applicable limit. Applications above the specified threshold must go through the SCSB's own banking channel rather than through UPI.

The UPI integration has also enabled real-time confirmation of fund availability. When you approve a UPI mandate, the payment system immediately verifies that the required funds are present in your linked bank account. This reduces the risk of applications failing post-submission due to insufficient funds - a scenario that can occur in the traditional SCSB channel if the investor's balance changes between application and the time the SCSB processes the block.

For SEBI, UPI-ASBA has been a significant success in terms of adoption metrics. The share of retail applications coming through the UPI route has grown substantially since its introduction, and the overall reduction in application processing time has improved the IPO ecosystem noticeably. The T+3 listing timeline aspiration that SEBI has articulated would not be achievable without the efficiency gains from UPI-ASBA.

Categories of Investors and ASBA Rules for Each

SEBI classifies IPO investors into three broad categories, and ASBA rules apply somewhat differently to each. Understanding which category you fall into is important because it determines your reservation quota, lot-size constraints, and the specific ASBA procedures you must follow.

Retail Individual Investors (RIIs) are individuals who apply for shares worth up to Rs 2 lakh in a single IPO application. SEBI reserves a portion of every mainboard IPO - typically 35% of the net offer - for this category. Retail investors may apply at the cut-off price (meaning they are willing to pay whatever price is discovered through book building) or at any price within the price band. SEBI mandates that all RII applications must go through ASBA, and UPI is the required route when applying through intermediaries other than SCSBs. RIIs benefit from the lottery system in oversubscribed IPOs, where each unique PAN-linked application has an equal chance of receiving at least one lot.

Non-Institutional Investors (NIIs), also called High Net Worth Individuals (HNIs), are individuals or entities that apply for shares worth more than Rs 2 lakh. SEBI typically reserves 15% of the net offer for this category. NIIs must mandatorily apply through the SCSB ASBA route - UPI is not available for NII-category applications given the higher amounts involved. NIIs are subject to a proportionate allotment system (not a lottery) in oversubscribed IPOs. SEBI has also introduced sub-categories within NII: small NIIs (applying for Rs 2 lakh to Rs 10 lakh) and large NIIs (applying for more than Rs 10 lakh), with each sub-category having a dedicated reservation within the overall NII quota.

Qualified Institutional Buyers (QIBs) include mutual funds, insurance companies, foreign institutional investors, and other institutional entities recognised by SEBI. They typically get 50% of the net offer (75% in case of SME IPOs, though the structure varies). QIBs must also apply through ASBA, and their applications are processed through designated SCSBs. Given the large amounts involved - often crores of rupees - QIBs typically have dedicated banking relationships with SCSBs and have streamlined processes for placing and managing ASBA blocks.

Anchor Investors form a separate pre-IPO category; they are not subject to ASBA since their allocation happens before the public issue opens and involves a separate payment process.

For SME IPOs listed on NSE Emerge or BSE SME, the ASBA process is broadly the same, but the proportion of shares reserved for different categories and the minimum lot sizes differ. SME IPOs are not open to retail investors in the same way as mainboard IPOs - the minimum application size is higher, often placing them in the NII category for most individual investors. Always check the specific Red Herring Prospectus for the reservation and application details of any particular issue.

Employee Reservation Portions and Shareholder Quotas (for rights issues or FPOs) also go through ASBA, though the specific mechanics may differ slightly. In a rights issue, for instance, the R-ASBA process allows existing shareholders to apply for their entitlements using the same block mechanism, with the allotment and debit following a similar sequence.

It is worth emphasising that using a wrong category in your application - for example, applying as a retail investor when your application amount exceeds Rs 2 lakh - will result in the application being rejected. Category selection is not merely administrative; it determines which reservation pool you draw from and which allotment methodology applies to you.

Common Reasons for ASBA Application Rejection and How to Avoid Them

Despite ASBA being a largely automated and investor-friendly process, a significant number of IPO applications are rejected every year due to avoidable errors. Understanding these common failure points can save you the frustration of watching an IPO close without your application being processed.

The single most common reason for rejection is insufficient funds in the linked bank account at the time the SCSB attempts to place the block. Investors sometimes apply for an IPO, assume the block will be placed later, and in the interim use their account balance for other transactions. By the time the SCSB processes the block, the required balance is no longer available, and the application fails. The fix is simple: ensure your bank account has at least the full application amount as a stable balance before and throughout the subscription period.

For UPI-ASBA applications, failure to approve the UPI mandate within the stipulated time is a major rejection cause. SEBI mandates a specific window for mandate approval (refer to the latest SEBI circular for the current requirement). Investors who apply for an IPO and then do not check their UPI app promptly, or who are out of mobile data range, can miss this window. Always apply when you know you will be able to check and approve the mandate within the required time. Some UPI apps send multiple reminders, but it is unwise to rely on reminders alone.

Incorrect PAN details are another frequent cause of rejection. Your PAN must exactly match the PAN linked to your demat account and your bank account. Any discrepancy - even a single character error - can cause the application to be rejected by the exchange's validation system.

Mismatched DP ID and Client ID cause similar problems. The depository participant details you provide in the application must correspond to an active demat account in your name. If you have multiple demat accounts and enter the wrong one, or if your demat account is frozen or inactive, the application will fail.

Applying under the wrong category - for instance, entering an application amount above Rs 2 lakh in the retail category - will result in rejection as described earlier. Conversely, failing to select the cut-off price option when you intend to bid at cut-off can be problematic if your specific bid price falls below the final issue price during price discovery.

Multiple applications from the same PAN for a single IPO are not permitted for retail investors. If you apply once through your bank's ASBA channel and again through your broker's UPI channel, only one application will be processed and the other will be rejected. Some investors with accounts at multiple brokers inadvertently do this. One PAN, one application per IPO is the rule.

Technical issues at the broker or bank level can also cause rejections, though these are less within the investor's control. Occasionally, system outages on the final day of subscription (which sees peak traffic) can delay mandate requests or block placements. Applying early in the subscription period - ideally on the first or second day - mitigates this risk significantly.

Finally, applying from a joint bank account where the first account holder's name does not match the demat account holder's name can cause rejection. SEBI requires alignment between the bank account and the demat account used for ASBA applications. Always use a bank account where you are the first or sole holder, matching your demat account ownership.

ASBA for Rights Issues: R-ASBA Explained

Rights issues are one of the most common ways listed companies raise additional capital from their existing shareholders. In a rights issue, the company offers new shares to current shareholders in proportion to their existing holdings, typically at a price below the prevailing market price. Until SEBI introduced the ASBA mechanism for rights issues - commonly referred to as R-ASBA - the rights issue process was notoriously cumbersome, involving physical application forms, demand drafts or cheques, and lengthy refund cycles.

R-ASBA applies the same core principle as IPO-ASBA: the applicant's funds are blocked in their bank account rather than upfront-debited, and the debit occurs only upon allotment. For rights issues, shareholders receive a Rights Entitlement (RE) credit in their demat accounts in proportion to their holdings. They can then apply for shares against this entitlement through the R-ASBA mechanism.

SEBI has made the rights issue process significantly more online-friendly in recent years. Eligible shareholders can apply through their broker's trading platform, through the registrar's online portal, or through the SCSB's net banking channel. The R-ASBA form requires the applicant to specify the number of shares they are applying for (up to their entitlement, and additionally under the additional subscription option if available).

One important nuance of rights issues: shareholders who do not wish to subscribe can renounce their Rights Entitlement to another party. The renouncee then applies as an applicant using the same ASBA mechanism. However, the renouncee must have a demat account and must apply through a permitted channel.

The timeline for rights issues is longer than for IPOs - subscription periods can span two to three weeks - but the ASBA block mechanism means investors are not disadvantaged by this extended timeline. Their funds remain in their own accounts throughout.

SEBI has also introduced the option for shareholders to apply for rights issues through a simplified process using UPI, similar to IPO-ASBA. This has improved accessibility for retail shareholders who may not have convenient access to bank ASBA portals.

It is worth noting that ASBA for rights issues also handles the scenario where a shareholder applies for more shares than their entitlement (additional subscription). The entire applied amount - entitlement plus additional application - is blocked, and only the amount corresponding to allotted shares (which may be a combination of entitled and additional shares depending on the issue's oversubscription level) is debited.

For investors holding shares of multiple listed companies and therefore potentially eligible for multiple rights issues in a given year, R-ASBA is a significant operational improvement. It means they can manage multiple rights applications without tying up large sums of money in multiple escrow accounts simultaneously.

Tax Implications and Interest on Blocked Funds

One of the practical benefits of ASBA that sometimes goes unremarked is the interest that accumulates on the blocked amount during the subscription and allotment period. Under the old cheque-based system, the money left your account immediately and you earned nothing on it during the IPO process. Under ASBA, since the funds technically remain in your bank account (just with a lien), you continue to earn savings-account interest on the blocked amount for the duration of the block.

For a retail investor applying for one lot in an IPO priced at, say, Rs 500 per share with a lot size of 50 shares, the application amount is Rs 25,000. Over a period of, say, ten days (from application to allotment), at a typical savings-account interest rate, the interest earned is modest - perhaps Rs 25 to Rs 40. It may seem small, but multiplied across lakhs of applicants in a large IPO, the aggregate interest retained by investors rather than going to the escrow pool is substantial.

From a tax perspective, this interest income is part of your savings account interest earnings and is taxable as income from other sources under the Income Tax Act, 1961. The applicable tax slabs and the TDS framework for savings account interest are determined by the Finance Act - refer to the latest Finance Act and your tax advisor for current rates, as these can change with each Union Budget.

For investors who apply in the NII category with large amounts - say, Rs 50 lakh or more - the interest benefit during the subscription period is more meaningful. At the same time, NII applicants often finance their applications through borrowed funds (margin funding from brokers or NBFCs), and the interest cost of such borrowing is a relevant consideration. The interest earned on the ASBA block partially offsets the borrowing cost, though the net economics depend on the specific interest rates involved.

The tax treatment of profits from IPO listing gains - if you are allotted shares and sell them on or after listing - depends on the holding period and the applicable capital gains tax provisions. Short-term capital gains (if held for less than twelve months) and long-term capital gains (if held for more than twelve months) are taxed differently under the Income Tax Act; rates change with Finance Act amendments. Investors should always refer to a qualified tax advisor for guidance specific to their situation.

It is also worth noting that the ASBA block does not affect your eligibility for interest on fixed deposits or other instruments held in the same bank - the lien is specifically on the portion of the savings/current account balance equal to the application amount, and other accounts or instruments are unaffected.

SEBI's Ongoing Reforms and the Future of ASBA

SEBI has not treated ASBA as a static framework. Since its introduction, there have been multiple iterative improvements, and further reforms are expected as technology and market practices evolve. Understanding the direction of these reforms helps investors appreciate the trajectory of IPO market infrastructure in India.

One of the most significant recent reforms was the reduction in the IPO listing timeline. SEBI has been working towards T+3 (listing three working days after issue close) for mainboard IPOs, down from the earlier T+6 timeline. This compressed timeline is only feasible because ASBA eliminates the time-consuming refund processing step. With funds never leaving investor accounts, the only post-closure processing required is allotment computation, debit/unblock instructions, and demat credit - all of which can be automated and parallelised.

SEBI has also been refining the framework around UPI mandate timelines and the responsibilities of intermediaries. Brokers and collection agents who fail to transmit applications on time, or SCSBs that fail to process block instructions promptly, face regulatory scrutiny. SEBI has issued warnings and imposed penalties on market participants for ASBA-related process failures, reinforcing that the integrity of the mechanism depends on every participant in the chain meeting their obligations.

Another area of ongoing reform is the harmonisation of ASBA processes across different types of public issues - IPOs, FPOs, rights issues, infrastructure investment trust (InvIT) public issues, and real estate investment trust (REIT) public issues. SEBI has progressively extended ASBA-equivalent mechanisms to these newer instrument types, creating a more consistent investor experience across the primary market.

SEBI has also been working on improving the transparency of allotment basis documents, ensuring that investors can easily verify how allotment was conducted for any issue. The allotment basis documents published by registrars post-allotment show, for each category, the total applications received, total shares available, and the methodology used (lottery for retail, proportionate for NIIs and QIBs). Cross-referencing these documents with your own application outcome helps you understand whether your application was processed correctly.

Looking further ahead, there are discussions in regulatory and market circles about integrating IPO application processes even more deeply with the demat and trading account infrastructure, potentially allowing seamless application management from within a single investment platform. Initiatives like the Investor Charter that SEBI has mandated for all market intermediaries also emphasise investor rights and grievance redressal in the context of ASBA and public issues.

For retail investors, the practical implication of these ongoing reforms is that the IPO application experience will continue to improve in terms of speed, transparency, and convenience. However, the core discipline required of investors - maintaining adequate bank balance, approving UPI mandates promptly, providing accurate application details - will remain constant regardless of how the technology evolves.

Example

Key benefits

How it works

1. 1
   Choose Your IPO and Application Amount

   Decide how many lots you wish to apply for and at what price (or cut-off price). Ensure your linked bank account has at least the full application amount as a stable balance.

2. 2
   Submit Application via SCSB or Broker

   Apply either through your bank's net banking ASBA portal (SCSB route) or through your broker's platform using your UPI ID. Enter your PAN, DP ID, client ID, bid quantity, and price accurately.

3. 3
   Approve UPI Mandate (for UPI-ASBA Route)

   If applying through a broker using UPI, you will receive a mandate request on your UPI app. Approve it within the stipulated time window specified in the latest SEBI circular to ensure your application is processed.

4. 4
   Funds Are Blocked

   Your SCSB places a lien on the application amount in your bank account. The funds remain yours and continue earning interest, but cannot be used for other transactions during the subscription period.

5. 5
   Subscription Period Closes and Allotment Is Processed

   After the IPO closes, the registrar collates all bids, determines subscription levels, and runs the allotment process (lottery for retail, proportionate for NIIs). Allotment results are published on the registrar's and exchange websites.

6. 6
   Debit or Unblock Instruction Sent

   The registrar sends instructions to each SCSB: debit the exact amount for allotted shares from allottees' accounts and transfer to the issuer's escrow; unblock the full or partial amount for those not allotted or partially allotted.

7. 7
   Shares Credited to Demat Account

   Allotted shares are credited to your demat account, and you receive a confirmation. On listing day (currently targeting T+3 from issue close for mainboard IPOs), your shares are available for trading on NSE and/or BSE.

Formula

Blocked Amount = (Number of Lots Applied) × (Lot Size in Shares) × (Bid Price per Share, typically the upper end of the price band)
Debit on Allotment = (Number of Lots Allotted) × (Lot Size in Shares) × (Final Issue Price)

Key takeaways

Frequently asked questions

Related terms