What is the process to transfer Amazon.com Gift Cards amount into personal bank account ?

I have collected some amount at Amazon. com by working there as a Worker. I am an Indian and I want to withdraw my balance through check. So I need to know, In what way I can withdraw or Transfer my Balance to my personal account.|||No cash back. Gift cards can only be used at the store which issued them. It has to do with tax problems. So buy what you need at Amazon.