Banks are enhancing their KYC standards by adding extra verification layers to identify accounts and account holders. The plan includes updating existing accounts, especially those with a single phone number linked to multiple or joint accounts, and seeking more verification from individuals with multiple accounts opened using different documents. A committee led by finance secretary TV Somanathan is working to standardise and ensure interoperable KYC norms across the financial sector. The move aims to address concerns about slackened KYC norms by fintech companies, which may increase risks for lenders.