Why did the e-Mandate registration fail?
The eMandate registration may fail if the authentication using net banking or debit card is not successful. This may happen if the authentication window is closed before credentials have been entered, or if incorrect credentials are entered. The specific reason would not be known by Zerodha, but only by the banks.
If mandate creation fails, they can be recreated from Console, see How to set up automatic fund transfers from a bank account to a Zerodha trading account?
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