It is a requirement to disclose all your bank accounts (domestic & foreign bank accounts) for ITR reporting purposes. If you have closed a bank account during the financial year, you are required to disclose it as well.
You can refer to the article - Add Bank Account details.
The bank account in which you receive the income tax refund is your Primary Bank Account.
Steps for adding multiple bank accounts
- Post adding one bank account, you can click on Add Account for adding multiple bank accounts
- You can click on Domestic Bank Account or Foreign Bank Account based on the multiple type of accounts you have and add the details
- The view reflected post having multiple bank accounts
- You can mark a refund account / primary account with the toggle button