Log in to the Income Tax e-Filing portal
Go to the Profile section
Select Bank Account
Add your bank account if not already added
Enter the correct account number, IFSC, and account holder name
Click Validate
Complete validation using net banking, Aadhaar OTP, or other available verification method
Check the validation status as Active and Pre-validated
Use the validated bank account for refund processing in ITR
Ensure the PAN is linked with the bank account
Ensure the bank account is in your name and active
Recheck details if validation fails
Contact your bank if the account is not being validated