Banks/Issuers can reduce your credit card limit, but must inform you about the change. RBI Master Direction on Credit Card and Debit Card Operations states clearly that intimation is mandatory. The regulation requires card issuers to inform cardholders when credit limits are reduced.
You agree to the terms and conditions (T&C) that allow periodic reviews of your account. Banks /Issuers do not need prior consent for reductions, unlike credit limit enhancements, which require approval. This clause gets accepted when you sign up for the card initially.
Issuers monitor your payment behaviour and credit usage patterns regularly. They assess risk factors during periodic reviews of all cardholder accounts. Notification comes via SMS, email, or a monthly statement after the reduction takes effect. You should check these channels regularly to stay informed about account changes.
The reduction happens based on internal risk policies and your financial behaviour. Banks evaluate multiple factors before making such decisions on credit limits. You must review your statements monthly to spot changes early and take action.