Bank Cards & their Features

Table of Contents
1. Types of cards
2. Debit cards
3. Credit cards
4. Prepaid cards
5. Key differences between Debit, Credit and Prepaid cards
6. Security features and safe practices
7. Common terms and short definitions
8. Practical examples and applications
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Types of cards

Cards issued for electronic payments and cash access can be classified by their purpose, issuer and payment mechanism. The three principal types are listed below:

• Debit cards
• Credit cards
• Prepaid cards

Debit cards

A debit card is issued by a bank and is linked to the cardholder's deposit account. Transactions using a debit card draw funds directly from the linked bank account.

• Usage: Withdraw cash from an ATM, pay at a Point of Sale (POS), and make online (e-commerce) purchases.
• Balance requirement: A transaction will be authorised only if there are sufficient funds in the linked account up to the account or daily withdrawal limit imposed by the bank.
• Domestic and international use: Debit cards may be enabled for domestic use only or for both domestic and international transactions depending on the card scheme and issuer.
• Common schemes: Debit cards are issued under schemes such as RuPay, Visa and MasterCard (scheme availability depends on the issuer).
• Security and authentication: Typical security features include a Personal Identification Number (PIN), EMV chip (chip-and-PIN), magnetic stripe, and sometimes a one-time password (OTP) for online transactions.
• Typical charges: Banks may levy service charges for ATM withdrawals (especially out-of-network or international), replacement cards, and other services as per their tariff schedule.
• Common variants: ATM-cum-debit cards, contactless debit cards (for tap-and-go payments), and dual-purpose cards that also support contactless or mobile wallet tokenisation.

Credit cards

A credit card allows the cardholder to obtain goods, services or cash advances on credit up to a predefined limit granted by the card issuer. The issuer may be a bank or another entity approved by the central bank.

• Credit limit: The issuer sets a credit limit. The cardholder can spend up to that limit; any amount used beyond the cardholder's available balance is treated as credit.
• Repayment and interest: Amounts due must be repaid as per the billing cycle. Interest is charged on unpaid outstanding balances after any interest-free period. Minimum payment requirements and late fees apply as per the issuer's terms.
• Transactions supported: Purchases at POS, online purchases, recurring transactions, mail-order/telephone-order (MOTO), cash advances at ATMs, and fund transfers where the issuer permits.
• Types: Unsecured credit cards (no collateral), secured credit cards (backed by a fixed deposit or other security), co-branded cards, and charge cards with different reward features.
• Features: Reward points, cashback, milestone benefits, travel and insurance benefits, EMV chip, contactless capability, and card-linked services such as instalment/EMI options.
• Security: Use of PIN for ATM and chip transactions, Card Verification Value (CVV) for card-not-present transactions, OTP for online authentication, and issuer monitoring for fraud detection.
• Issuer oversight: Credit cards are issued by banks and other authorised entities and operate under the regulator's guidelines and the rules of the card scheme.

Prepaid cards

A prepaid card is loaded with funds in advance and transactions draw down the stored balance. Prepaid cards are not linked to a deposit account unless the issuer explicitly offers that facility.

• Issuers: Prepaid cards may be issued by banks and by authorised non-bank entities.
• Stored value: The user pays or loads an amount onto the card before use; transactions deduct from that stored value.
• System classifications:
  • Open system prepaid cards: Issued by banks and usable for a wide range of payments and ATM withdrawals as permitted by the issuer and the scheme.
  • Semi-closed system prepaid cards: Issued by authorised non-bank entities and usable at a specified set of merchants or locations; generally do not permit ATM cash withdrawal.
  • Closed system prepaid cards: Issued for use within a single merchant's ecosystem (for example, store gift cards); not usable outside that merchant.
• Usage: Depending on the type and issuer, prepaid cards can be used for POS, online purchases and, where allowed, ATM withdrawals and fund transfers.
• Reloadability: Some prepaid cards are reloadable; others (such as many gift cards) are single-use until the stored value is exhausted.
• Limits and KYC: Stored value and load limits are subject to regulatory limits and KYC requirements. At any point of time, a user may store a maximum of Rs. 50,000 on certain types of prepaid cards as per the prevailing guidelines applicable to those card categories.
• Examples: Travel cards, gift cards, payroll cards and closed-loop retail cards.

Key differences between Debit, Credit and Prepaid cards

Security features and safe practices

• Always protect the PIN and never write it on the card. Change the PIN if compromise is suspected.
• Use EMV chip enabled terminals and cards for better protection against counterfeit fraud.
• Use OTP or two-factor authentication for online card transactions where available.
• Verify the CVV and expiry details only on trusted merchant sites; do not share CVV/PIN/OTP with anyone.
• Enable transaction alerts (SMS/email) to monitor card activity in real time.
• Block the card immediately through the issuer's helpline or mobile app if lost or compromised; follow the issuer's dispute and chargeback procedure for unauthorised transactions.
• Keep KYC details updated with the issuer as per regulatory requirements-this assists in faster resolution of disputes and access to card services.

Common terms and short definitions

• EMV: A global standard for chip cards and the terminals that accept them; improves security versus magnetic-stripe cards.
• PIN: Personal Identification Number used to authenticate cardholder at ATM or POS.
• CVV: Card Verification Value printed on the card, used to authenticate card-not-present transactions.
• POS: Point of Sale device used by merchants to accept card payments.
• Cash advance: Withdrawal of cash using a credit card, usually attracting fees and higher interest.
• Credit limit: Maximum credit available on a credit card as set by the issuer.
• Stored value: Amount preloaded on a prepaid card available for spending.

Practical examples and applications

• If you want to make everyday purchases using money directly from your bank account, a debit card is appropriate.
• If you need short-term credit with benefits such as rewards or a period of interest-free credit, a credit card is suitable, provided you manage repayments promptly.
• For gifting, travel foreign currency needs, or controlled spending for certain use cases, a prepaid card may be the best choice.

Debit, credit and prepaid cards serve distinct purposes: debit cards provide direct access to bank funds; credit cards extend a line of credit with repayment obligations; and prepaid cards let users spend preloaded funds without a bank account linkage. Choice of card depends on the user's need for liquidity, credit, convenience, security features and regulatory limits.