Why are funds added through IMPS, NEFT or RTGS getting refunded to the source bank account?

Funds transferred via IMPS, NEFT or RTGS may be refunded to the source bank account for several reasons:

• Unlinked bank account: If a transfer is made from a bank account not linked to the trading account, the funds are automatically refunded. To learn more, see Can funds be transferred using IMPS, NEFT, RTGS or cheque from bank accounts not linked to the Zerodha account?
• Incorrect details: If the bank account number or IFSC code is incorrect or outdated in the Zerodha account, the funds will be refunded. This may happen if the bank has changed its branch details. To learn more, see What to do if the bank has changed the branch IFSC, MICR or account number?
• Joint bank account: If funds are transferred via IMPS, NEFT or RTGS from a joint bank account linked to multiple Zerodha accounts, they will be refunded. To learn more, see Can joint bank accounts be linked with a Zerodha account?
• Inactive account: If the trading account is inactive or has not yet been activated after opening, the funds may be refunded. To learn more see, How long does it take to open an account, and where can the account opening status be tracked?
• Bank settlement account: If the funds are transferred from a bank's settlement account number, they will not be added to the Zerodha account and will be refunded. In such cases, use other available fund transfer methods.