As you asking I am telling State Bank of India provides quick missed call service for account balance enquiry,

To use SBI missed call service, first you have to register your mobile number.

State Bank Of India

Register mobile number for SBI missed call service
Send SMS ‘REG account number' to 09223488888
e.g. REG 12345678901

You will get confirmation message.

Your Mobile number must be available in bank records then only you can register for SBI missed call service. To attach a mobile number with the account, contact your branch.

You can check the balance by sending miss call to 09223766666 or sending SMS ‘BAL' to 09223766666.

You can get the mini statement of last 5 transaction of the account by sending miss call to 09223866666 or sending SMS ‘MSTMT' to 09223866666.

Other services
You can block your SBI ATM card by sending SMS 'BLOCK XXXX' to 567676. XXXX represents last 4 digit of the card number.

You can also do loan enquiry by sending SMS ‘HOME' or ‘CAR' to 09223588888.

Get the full list of instant messaging services by sending SMS ‘HELP' to 09223588888.

De-register mobile number for SBI missed call service
You can de-register from SBI Quick through the following process.
Send SMS ‘DREG account number' to 09223488888
e.g. DREG 12345678901