You can know the total interest earned on all fixed deposit accounts linked to your PAN card number in the following ways:

By visiting the bank’s website: Many banks allow you to check your fixed deposit account details, including the interest earned, by logging into your account on the bank’s website using your PAN card number.

By visiting the Income Tax Department’s website: You can also check the total interest earned on all fixed deposit accounts linked to your PAN card number by visiting the Income Tax Department’s website. Click on the “View Form 26AS (Tax Credit)” option and enter your PAN number. The website will display the total interest earned on all fixed deposit accounts linked to your PAN card number.

By visiting NSDL website: You can also check the total interest earned on all fixed deposit accounts linked to your PAN card number by visiting the National Securities Depository Limited (NSDL) website (TRACES Portal for NRI Users) . Click on the “Form 26AS” option and enter your PAN number. The website will display the total interest earned on all fixed deposit accounts linked to your PAN card number.

It’s important to note that the information about interest earned is usually updated on a regular basis, so it may not reflect the current interest earned. Also, you will need to register on the website to access the information.