ASBA (Applications Supported by Blocked Amount) is a process developed by the India`s Stock Market Regulator SEBI for applying to IPO. In 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. Currently a...... Found on http://en.wikipedia.org/wiki/ASBA