1. A debit card spends from money you already have

A debit card is linked to a bank account. When you use it for a purchase or cash withdrawal, the transaction ultimately reduces money available in that account rather than creating a separate credit-card loan. Your card can be physical or virtual, and the bank can apply limits for ATM, online, contactless or international usage.

Tip: Debit card = access to your deposit account, subject to authorization and limits.

2. Authorization happens before final settlement

At a shop, the merchant sends an authorization request through the card network to your bank. The bank checks card status, available balance, limits and authentication before approving or declining. Final settlement can occur later. That is why a transaction may temporarily appear as pending before it becomes fully posted.

Tip: Approved does not always mean fully settled yet.

3. ATM withdrawals are another debit-card use

At an ATM, the card and PIN help authenticate the withdrawal request. If approved, cash is dispensed and the linked account is debited. ATM limits and free-transaction entitlements depend on applicable rules, bank policy, location and account type.

Note: Never write the PIN on the card or share it with someone offering help at an ATM.

4. Blocking the card stops future card use, not the account itself

If a debit card is lost, you can usually block or disable that card through the bank. Your underlying bank account still exists and may remain accessible through other permitted channels. Review suspicious transactions quickly and report them through official bank channels. Security settings such as online and international controls can reduce unnecessary exposure.

Tip: Think of the debit card as one access key to the account - not the account itself.

5. Quick check

You make a ₹2,000 debit-card purchase. Where does the money ultimately come from?