what is the full form of asba
ASBA means âApplications Supported by Blocked Amountâ. ASBA is an application containing an authorization to block the application money in the bank account, for subscribing to an issue.n ASBA, an IPO applicant's account doesn't get debited until shares are allotted to them. Earlier Qualified Institutional Buyers (QIBs) were not allowed to participate in IPOs through ASBA facility.