SBI offers DEMAT services that would ensure free transferability of securities with speed, accuracy and security.
SBI is Depository Participant both with -National Securities Depositories Limited (NSDL) and Central Depository Services Limited (CDSL) through more than 1000 branches.

DEMAT form has the following benefit:

Account Maintenance & Safe custody: Facilitates Maintaining Security Balance in electronic form
Dematerialization: Facilitates converting physical share certificate into electronic balances.
Rematerialization: Facilitates converting the electronic balances to physical (share certificate) form.
Account Transfers: Facilitates delivery/receipt of electronic balances consequent to market / off-market trades.
Pledge/Hypothecation: Facilitates blocking securities balance of borrowers in favour of lenders for obtaining Loans / advances against shares.
Initial Public offer: Facilitates faster and direct credit of security balances into DP account on allotment through public issue of companies
Disbursement of corporate benefits: Facilitates faster and direct credit of security balance into DP account on account of non-monetary corporate benefits as bonus and rights issues.
Security Lending: Facilitates earning extra income on your dematerialized holdings by the way of securities lending