Full Form of ASBA

Updated on April 17, 2024
Article byWallstreetmojo Team
Edited byWallstreetmojo Team
Reviewed byDheeraj Vaidya, CFA, FRM

Full Form of ASBA – Applications Supported by Blocked Amount

The full form of ASBA is Applications Supported by Blocked Amount. The Securities and Exchange Board of India (SEBI), the regulator for the Indian stock market, has defined the process called ASBA for companies applying for IPOs (Initial Public Offering), Rights issue, FPS, etc. ASBA, as a process, is implemented in banking applications, which block the investor’s amount from getting debited until the shares are allotted.

Not all the banks support this application, but self-certified syndicate banks (SCSBs) support this process inculcated by the regulator SEBI. The investor cannot withdraw the blocked amount, and also the movement of these funds to firms won’t happen until the shares hit their Demat account. ASBA came into existence from the year 2008.

Key Takeaways

  • ASBA is a mechanism introduced by securities regulators to facilitate the application and payment process for initial public offerings (IPOs), rights issues, and other public offerings.
  • With ASBA, investors do not need to pay for securities they apply for upfront. Instead, the required amount is blocked in their bank accounts until the allotment process is completed.
  • ASBA ensures that investors’ funds are protected and only released when the securities are allotted. It eliminates the need for refunds and reduces the risk of misuse of funds during the application process.
  • ASBA is a convenient and efficient way for investors to participate in public offerings without the hassle of issuing cheques, managing refunds, or worrying about oversubscription issues.


  • SCSBs who are authorized to perform ASBA can accept the investors’ applications for the subscription of IPOs.
  • Once they receive the form, they will verify their end for the necessary background of the account.
  • Once the application is approved, the amount is blocked from the applicant’s account and set aside for the IPO.
  • NSE has a bidding system through which the shares are allotted; the details are uploaded to this system.
  • In case of successful subscription, shares are credited to the investor’s Demat account, and in case allotment fails, the blocked amount is refunded back to the investor’s original account.
  • As of November 10th, 2015, SEBI has mandated all subscriptions for IPOs only through ASBA.

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How Does it Work?

  • During the IPO, when the bid is made open to the public, the investors start submitting their bids for the subscription. After verification, the application receives these bids and is stamped with a number and stored in the book. Each of these bids is unique in terms of number, the number of shares requested, and the bid amount. The applications would have already blocked the amount from the account till the opening day of IPO.
  • Once the IPO opens, the system starts allotting shares based on the bid amount hierarchy and number of lots requested by the investor. At the time of subscription itself, the lot size and other priorities would have been set. For all the stamped numbers in the book, wherever the allotment is executed, the blocked amount is debited and credited to the firm’s beneficiary account against the shares being allotted to them simultaneously.
  • After all the available shares are allotted to the investor, the stamped number remaining in the book without any allotment is unfrozen in one go. This will unblock the amount from the investment amount. Thus the amount not utilized is returned back to the investor in a short period of time with no fuzz.

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Significance of ASBA

Before ASBA, investors were supposed to BID for IPOs through cheques, which were a lengthy and tedious process for the investors. They will have to pay fees upfront and wait for the refund again through cheques in case the shares are not allotted. ASBA simplifies the whole process, along with bringing transparency to the system. The investor won’t have to wait for the amount to be refunded or follow up regularly to check the refund status. The amount can be utilized then and there as refunded by the investor. The application blocks and unblocks the amount automatically so that investors can subscribe for more than one IPOs simultaneously or one after the other.

SEBI is the regulator of the stock market, makes sure the whole investing activity for an investor is friendly, and encourages any scope, if any, for the investor to subscribe more for the IPOs. As transparency is maintained, the question of the discrepancy is very less or none. The process reduces manual intervention as the whole application runs automatically at the backend.

Benefits of ASBA

  • Applications Supported by Blocked Amount simplifies the IPO subscription, which used to happen through cheques, which was a painful process with many limitations.
  • An investor need not pay cheques or block funds by himself but is done by the application instead. This will help investors earn interest in the blocked amount also.
  • An investor doesn’t have to bother about the refund in case shares are not allotted. The application does it at the backend with ease.
  • The investor can revise, review, withdraw, and check this bid’s status until the allotment date.
  • Due to SCSB, the investor’s intermediary for the subscription will always be his own bank, and in case of discrepancy, he would know whom to contact and where to reach out.
  • There is no mandate that the investor needs to have a depository account with their SCSB.


  • It is an application that does the blocking-unblocking of funds from the account.
  • Applications Supported by Blocked Amount reduces the manual intervention required to return the unused amount back to the investor who has not been allotted shares during the IPO.
  • The issuer company guarantees through ASBA that the blocked amount for the IPO is not used or misused for other purposes.
  • Till the allotment date, the investor can revise, withdraw, or cancel his bid for the shares. The blocked amount changes as the revised bid.
  • Revision of bid is made easy in ASBA compared to the earlier system, where the investor had to provide whole new bid papers along with destroying the previous ones.
  • The investor can check the status of the bid online.


It is the process defined by SEBI to make the subscription process for IPO easy for the investor. Earlier, the amount had to be given out through cheques, which would be blocked/unusable till the allotment date. With the ASBA, the investor earns the interest on the amount, and the refund in case of non-allotment of shares is easy. SEBI has made ASBA compulsory for all the SCSB banks for the IPO subscription. It is an automated process executed through banking applications, thus excluding all the manual intervention needed during the allotment and refund of the funds back to the investor. When the shares are allotted to a particular investor, the blocked amount is debited from his/her account, and the share is credited to the linked Demat account.

Frequently Asked Questions (FAQs)

Is ASBA available for all public offerings?

ASBA is widely used for IPOs and rights issues in many countries. However, its availability may vary depending on the regulations and practices of each market. It is essential to check with the issuing company or regulatory authorities to confirm if ASBA is applicable.

Can investors modify or withdraw their ASBA applications?

Investors can modify or withdraw their ASBA applications before the closing date of the public offering. However, modifications or withdrawals may not be allowed once the application is submitted and the bidding process begins.

Are there any charges or fees associated with ASBA?

The charges or fees associated with ASBA may vary depending on the bank and the specific offering. Investors should inquire with their bank about any applicable fees, including processing charges or transaction fees, before using the ASBA facility.

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