Yes, a bank can freeze your account without prior notice under certain circumstances. While RBI guidelines generally require banks to provide reasonable notice for issues like KYC non-compliance, accounts can be frozen instantly without warning in the following cases:
- Suspected fraudulent or suspicious activity detected by the bank's monitoring systems
- Orders from law enforcement agencies, such as the police or Cyber Cell
- Directives from government authorities like the Income Tax Department or Enforcement Directorate
- Court orders or legal disputes involving the account