Its been really difficult to find how I can remove the currently added debit card from Amazon, since I have added the debit card to make Amazon SES payments and being a novice to amazon interface, I was unable to remove the card.
So finally found a link from which you can remove your already added card into Amazon ( which is used in all different services of Amazon )
1. click https://www.amazon.com/gp/css/account/cards/view.html
2. Click “Delete” in front of your card.
Another Options, We found is,
1. Login to Amazon account from https://www.amazon.com/gp/css/homepage.html
2. Click “Your Account” from top right first option.
3. Check “Amazon Wallet” -> Payment Methods and click “Manage Payment Options”
4. Click arrow infront of your Credit / Debit card and click “Delete” Button.