A Self-certified Syndicate Bank (SCSB) is a financial institution that has been authorized by the Securities and Exchange Board of India (SEBI) to provide the Application Supported by Blocked Amount (ASBA) service to its customers. The SCSB can provide this service to the investor by blocking the required amount in their account until the shares are allotted. SCSBs are authorised by the Securities and Exchange Board of India (SEBI) to provide ASBA services to investors.