If you are looking to find out the balance in your SBI Debit card, you should know the fact the Debit card is a card that is linked to your SBI Bank account, be it a Savings or current account. For most bank accounts, SBI gives a maestro card and for some privileged accounts, it provides Visa or Master card labelled cards. In any case, knowing your Debit card balance is nothing but knowing your bank balance. If you have a Maestro labelled debit card (also called as ATM cum Debit card or SBI Cash plus), you can see different ways to check your SBI account balance.
If you have a Visa or Master card labelled Debit card, you can also register your cards for an additional security options, VbV and MasterCard security code respectively and see all the transactions that have taken place using that card.