Drop down in table

Hi Experts,

I have a client requirement where i need to display a table with the below structure

Employee Number      Document Category      Action

Here the first two columns are ready only while the third field needs to be a drop down .

The values in drop down need to be populated dynamically based on the document category for each row.

Eg: First row

1234          Visa               the drop down values should be New and Renewal

Second row

4567          Gate Pass     the drop down values should be New, Extend, Cancel.

Kindly let me know step by step process to achieve this.

Thanks,

Anju