I can think of a few things to get this right, Neelu.
Based on the details you've mentioned above, the imported bank transactions were already added to the bank account on your Chart of Accounts. With that said, we'll have to go to your bank register and delete the added bank transactions manually.
- Click Lists at the top menu and select Chart of Accounts.
- Click on the bank account to see the register.
- Select the transactions and delete them manually.
If you have created a backup copy of your company file prior to importing the bank transactions, we can just restore it: Restore a backup of your company file.
From there, you can import the correct file for your bank transactions: Set up bank accounts for Bank Feeds in QuickBooks Desktop.
We got your back if you have additional queries regarding this process. Have a great day!